Finding the Fourth Proportional to 42,747,840.72, 63,970,398 and 26,581,404.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,747,840.72 : 63,970,398 = 26,581,404.96 : x
2. Step 2: Convert to fraction form
   42,747,840.72/63,970,398 = 26,581,404.96/x
3. Step 3: Cross multiply
   42,747,840.72x = 63,970,398 × 26,581,404.96
4. Step 4: Simplify right side
   42,747,840.72x = 1,700,423,054,690,374.25
5. Step 5: Solve for x
   x = 1,700,423,054,690,374.25/42,747,840.72
6. Step 6: Final answer
   x = 39,777,987.05