Finding the Fourth Proportional to 88,618.99, 132,945.78 and 28,662.36

Step by Step Solution

1. Step 1: Write the proportion equation
   88,618.99 : 132,945.78 = 28,662.36 : x
2. Step 2: Convert to fraction form
   88,618.99/132,945.78 = 28,662.36/x
3. Step 3: Cross multiply
   88,618.99x = 132,945.78 × 28,662.36
4. Step 4: Simplify right side
   88,618.99x = 3,810,539,335.17
5. Step 5: Solve for x
   x = 3,810,539,335.17/88,618.99
6. Step 6: Final answer
   x = 42,999.13