Finding the Fourth Proportional to 88,561.72, 132,255.56 and 77,830.84

Step by Step Solution

1. Step 1: Write the proportion equation
   88,561.72 : 132,255.56 = 77,830.84 : x
2. Step 2: Convert to fraction form
   88,561.72/132,255.56 = 77,830.84/x
3. Step 3: Cross multiply
   88,561.72x = 132,255.56 × 77,830.84
4. Step 4: Simplify right side
   88,561.72x = 10,293,560,279.04
5. Step 5: Solve for x
   x = 10,293,560,279.04/88,561.72
6. Step 6: Final answer
   x = 116,230.36