Finding the Fourth Proportional to 156,432.37, 215,875.36 and 88,462.69

Step by Step Solution

1. Step 1: Write the proportion equation
   156,432.37 : 215,875.36 = 88,462.69 : x
2. Step 2: Convert to fraction form
   156,432.37/215,875.36 = 88,462.69/x
3. Step 3: Cross multiply
   156,432.37x = 215,875.36 × 88,462.69
4. Step 4: Simplify right side
   156,432.37x = 19,096,915,050.32
5. Step 5: Solve for x
   x = 19,096,915,050.32/156,432.37
6. Step 6: Final answer
   x = 122,077.77