Finding the Fourth Proportional to 88,591.88, 132,904.94 and 28,636.49

Step by Step Solution

1. Step 1: Write the proportion equation
   88,591.88 : 132,904.94 = 28,636.49 : x
2. Step 2: Convert to fraction form
   88,591.88/132,904.94 = 28,636.49/x
3. Step 3: Cross multiply
   88,591.88x = 132,904.94 × 28,636.49
4. Step 4: Simplify right side
   88,591.88x = 3,805,931,174.34
5. Step 5: Solve for x
   x = 3,805,931,174.34/88,591.88
6. Step 6: Final answer
   x = 42,960.27