Finding the Fourth Proportional to 88,123.31, 132,156.97 and 28,945.20

Step by Step Solution

1. Step 1: Write the proportion equation
   88,123.31 : 132,156.97 = 28,945.20 : x
2. Step 2: Convert to fraction form
   88,123.31/132,156.97 = 28,945.20/x
3. Step 3: Cross multiply
   88,123.31x = 132,156.97 × 28,945.20
4. Step 4: Simplify right side
   88,123.31x = 3,825,309,855.68
5. Step 5: Solve for x
   x = 3,825,309,855.68/88,123.31
6. Step 6: Final answer
   x = 43,408.61