Finding the Fourth Proportional to 59,213,321.37, 81,689,361.71 and 39,640,515.80

Step by Step Solution

1. Step 1: Write the proportion equation
   59,213,321.37 : 81,689,361.71 = 39,640,515.80 : x
2. Step 2: Convert to fraction form
   59,213,321.37/81,689,361.71 = 39,640,515.80/x
3. Step 3: Cross multiply
   59,213,321.37x = 81,689,361.71 × 39,640,515.80
4. Step 4: Simplify right side
   59,213,321.37x = 3,238,208,432,950,520.50
5. Step 5: Solve for x
   x = 3,238,208,432,950,520.50/59,213,321.37
6. Step 6: Final answer
   x = 54,687,160.90