Finding the Fourth Proportional to 42,747,841.72, 63,970,399.50 and 26,581,405.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,747,841.72 : 63,970,399.50 = 26,581,405.96 : x
2. Step 2: Convert to fraction form
   42,747,841.72/63,970,399.50 = 26,581,405.96/x
3. Step 3: Cross multiply
   42,747,841.72x = 63,970,399.50 × 26,581,405.96
4. Step 4: Simplify right side
   42,747,841.72x = 1,700,423,158,532,881
5. Step 5: Solve for x
   x = 1,700,423,158,532,881/42,747,841.72
6. Step 6: Final answer
   x = 39,777,988.55