Finding the Fourth Proportional to 60,185.16, 89,787.75 and 58,638.60

Step by Step Solution

1. Step 1: Write the proportion equation
   60,185.16 : 89,787.75 = 58,638.60 : x
2. Step 2: Convert to fraction form
   60,185.16/89,787.75 = 58,638.60/x
3. Step 3: Cross multiply
   60,185.16x = 89,787.75 × 58,638.60
4. Step 4: Simplify right side
   60,185.16x = 5,265,027,957.15
5. Step 5: Solve for x
   x = 5,265,027,957.15/60,185.16
6. Step 6: Final answer
   x = 87,480.50