Finding the Fourth Proportional to 60,757.55, 83,238.30 and 58,485.30

Step by Step Solution

1. Step 1: Write the proportion equation
   60,757.55 : 83,238.30 = 58,485.30 : x
2. Step 2: Convert to fraction form
   60,757.55/83,238.30 = 58,485.30/x
3. Step 3: Cross multiply
   60,757.55x = 83,238.30 × 58,485.30
4. Step 4: Simplify right side
   60,757.55x = 4,868,216,946.99
5. Step 5: Solve for x
   x = 4,868,216,946.99/60,757.55
6. Step 6: Final answer
   x = 80,125.30