Finding the Fourth Proportional to 59,841.60, 89,719.20 and 39,076.80

Step by Step Solution

1. Step 1: Write the proportion equation
   59,841.60 : 89,719.20 = 39,076.80 : x
2. Step 2: Convert to fraction form
   59,841.60/89,719.20 = 39,076.80/x
3. Step 3: Cross multiply
   59,841.60x = 89,719.20 × 39,076.80
4. Step 4: Simplify right side
   59,841.60x = 3,505,939,234.56
5. Step 5: Solve for x
   x = 3,505,939,234.56/59,841.60
6. Step 6: Final answer
   x = 58,586.99