Finding the Fourth Proportional to 72,046,781.74, 99,423,371.92 and 39,006,766.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,046,781.74 : 99,423,371.92 = 39,006,766.72 : x
2. Step 2: Convert to fraction form
   72,046,781.74/99,423,371.92 = 39,006,766.72/x
3. Step 3: Cross multiply
   72,046,781.74x = 99,423,371.92 × 39,006,766.72
4. Step 4: Simplify right side
   72,046,781.74x = 3,878,184,274,999,238.50
5. Step 5: Solve for x
   x = 3,878,184,274,999,238.50/72,046,781.74
6. Step 6: Final answer
   x = 53,828,695.49