Finding the Fourth Proportional to 88,061.76, 132,048.72 and 28,890.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,061.76 : 132,048.72 = 28,890.72 : x
2. Step 2: Convert to fraction form
   88,061.76/132,048.72 = 28,890.72/x
3. Step 3: Cross multiply
   88,061.76x = 132,048.72 × 28,890.72
4. Step 4: Simplify right side
   88,061.76x = 3,814,982,595.88
5. Step 5: Solve for x
   x = 3,814,982,595.88/88,061.76
6. Step 6: Final answer
   x = 43,321.67