Finding the Fourth Proportional to 59,466.60, 89,027.10 and 57,738.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,466.60 : 89,027.10 = 57,738.60 : x
2. Step 2: Convert to fraction form
   59,466.60/89,027.10 = 57,738.60/x
3. Step 3: Cross multiply
   59,466.60x = 89,027.10 × 57,738.60
4. Step 4: Simplify right side
   59,466.60x = 5,140,300,116.06
5. Step 5: Solve for x
   x = 5,140,300,116.06/59,466.60
6. Step 6: Final answer
   x = 86,440.12