Finding the Fourth Proportional to 93,414.50, 128,912.01 and 59,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   93,414.50 : 128,912.01 = 59,880.50 : x
2. Step 2: Convert to fraction form
   93,414.50/128,912.01 = 59,880.50/x
3. Step 3: Cross multiply
   93,414.50x = 128,912.01 × 59,880.50
4. Step 4: Simplify right side
   93,414.50x = 7,719,315,614.81
5. Step 5: Solve for x
   x = 7,719,315,614.81/93,414.50
6. Step 6: Final answer
   x = 82,635.09