Finding the Fourth Proportional to 72,118.55, 99,523.35 and 39,852.27

Step by Step Solution

1. Step 1: Write the proportion equation
   72,118.55 : 99,523.35 = 39,852.27 : x
2. Step 2: Convert to fraction form
   72,118.55/99,523.35 = 39,852.27/x
3. Step 3: Cross multiply
   72,118.55x = 99,523.35 × 39,852.27
4. Step 4: Simplify right side
   72,118.55x = 3,966,231,415.50
5. Step 5: Solve for x
   x = 3,966,231,415.50/72,118.55
6. Step 6: Final answer
   x = 54,995.99