Finding the Fourth Proportional to 156,443.20, 215,890.31 and 88,473.52

Step by Step Solution

1. Step 1: Write the proportion equation
   156,443.20 : 215,890.31 = 88,473.52 : x
2. Step 2: Convert to fraction form
   156,443.20/215,890.31 = 88,473.52/x
3. Step 3: Cross multiply
   156,443.20x = 215,890.31 × 88,473.52
4. Step 4: Simplify right side
   156,443.20x = 19,100,575,659.59
5. Step 5: Solve for x
   x = 19,100,575,659.59/156,443.20
6. Step 6: Final answer
   x = 122,092.72