Finding the Fourth Proportional to 72,418,113.90, 99,924,881.62 and 42,654,688.04

Step by Step Solution

1. Step 1: Write the proportion equation
   72,418,113.90 : 99,924,881.62 = 42,654,688.04 : x
2. Step 2: Convert to fraction form
   72,418,113.90/99,924,881.62 = 42,654,688.04/x
3. Step 3: Cross multiply
   72,418,113.90x = 99,924,881.62 × 42,654,688.04
4. Step 4: Simplify right side
   72,418,113.90x = 4,262,264,652,435,405.50
5. Step 5: Solve for x
   x = 4,262,264,652,435,405.50/72,418,113.90
6. Step 6: Final answer
   x = 58,856,333.36