Finding the Fourth Proportional to 120,987,525,753.99, 166,984,646,339.46 and 72,161,479,538.37

Step by Step Solution

1. Step 1: Write the proportion equation
   120,987,525,753.99 : 166,984,646,339.46 = 72,161,479,538.37 : x
2. Step 2: Convert to fraction form
   120,987,525,753.99/166,984,646,339.46 = 72,161,479,538.37/x
3. Step 3: Cross multiply
   120,987,525,753.99x = 166,984,646,339.46 × 72,161,479,538.37
4. Step 4: Simplify right side
   120,987,525,753.99x = 12,049,859,140,046,892,826,624
5. Step 5: Solve for x
   x = 12,049,859,140,046,892,826,624/120,987,525,753.99
6. Step 6: Final answer
   x = 99,595,880,360.00