Finding the Fourth Proportional to 88,156.16, 132,238.48 and 28,990.52

Step by Step Solution

1. Step 1: Write the proportion equation
   88,156.16 : 132,238.48 = 28,990.52 : x
2. Step 2: Convert to fraction form
   88,156.16/132,238.48 = 28,990.52/x
3. Step 3: Cross multiply
   88,156.16x = 132,238.48 × 28,990.52
4. Step 4: Simplify right side
   88,156.16x = 3,833,662,299.21
5. Step 5: Solve for x
   x = 3,833,662,299.21/88,156.16
6. Step 6: Final answer
   x = 43,487.17