Finding the Fourth Proportional to 9,900,911.52, 13,664,658.77 and 5,491,611.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900,911.52 : 13,664,658.77 = 5,491,611.99 : x
2. Step 2: Convert to fraction form
   9,900,911.52/13,664,658.77 = 5,491,611.99/x
3. Step 3: Cross multiply
   9,900,911.52x = 13,664,658.77 × 5,491,611.99
4. Step 4: Simplify right side
   9,900,911.52x = 75,041,003,947,294.23
5. Step 5: Solve for x
   x = 75,041,003,947,294.23/9,900,911.52
6. Step 6: Final answer
   x = 7,579,201.55