Finding the Fourth Proportional to 88,560.86, 132,870.02 and 53,016.65

Step by Step Solution

1. Step 1: Write the proportion equation
   88,560.86 : 132,870.02 = 53,016.65 : x
2. Step 2: Convert to fraction form
   88,560.86/132,870.02 = 53,016.65/x
3. Step 3: Cross multiply
   88,560.86x = 132,870.02 × 53,016.65
4. Step 4: Simplify right side
   88,560.86x = 7,044,322,416.40
5. Step 5: Solve for x
   x = 7,044,322,416.40/88,560.86
6. Step 6: Final answer
   x = 79,542.16