Finding the Fourth Proportional to 72,339,061.92, 99,828,605.10 and 39,299,547.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,339,061.92 : 99,828,605.10 = 39,299,547.48 : x
2. Step 2: Convert to fraction form
   72,339,061.92/99,828,605.10 = 39,299,547.48/x
3. Step 3: Cross multiply
   72,339,061.92x = 99,828,605.10 × 39,299,547.48
4. Step 4: Simplify right side
   72,339,061.92x = 3,923,219,005,989,619.50
5. Step 5: Solve for x
   x = 3,923,219,005,989,619.50/72,339,061.92
6. Step 6: Final answer
   x = 54,233,755.62