Finding the Fourth Proportional to 102,583.52, 141,564.72 and 57,258.88

Step by Step Solution

1. Step 1: Write the proportion equation
   102,583.52 : 141,564.72 = 57,258.88 : x
2. Step 2: Convert to fraction form
   102,583.52/141,564.72 = 57,258.88/x
3. Step 3: Cross multiply
   102,583.52x = 141,564.72 × 57,258.88
4. Step 4: Simplify right side
   102,583.52x = 8,105,837,314.71
5. Step 5: Solve for x
   x = 8,105,837,314.71/102,583.52
6. Step 6: Final answer
   x = 79,016.95