Finding the Fourth Proportional to 59,920,426.24, 82,747,297.20 and 56,656,002.99

Step by Step Solution

1. Step 1: Write the proportion equation
   59,920,426.24 : 82,747,297.20 = 56,656,002.99 : x
2. Step 2: Convert to fraction form
   59,920,426.24/82,747,297.20 = 56,656,002.99/x
3. Step 3: Cross multiply
   59,920,426.24x = 82,747,297.20 × 56,656,002.99
4. Step 4: Simplify right side
   59,920,426.24x = 4,688,131,118,100,381
5. Step 5: Solve for x
   x = 4,688,131,118,100,381/59,920,426.24
6. Step 6: Final answer
   x = 78,239,281.87