Finding the Fourth Proportional to 156,271.41, 215,643.89 and 88,291.24

Step by Step Solution

1. Step 1: Write the proportion equation
   156,271.41 : 215,643.89 = 88,291.24 : x
2. Step 2: Convert to fraction form
   156,271.41/215,643.89 = 88,291.24/x
3. Step 3: Cross multiply
   156,271.41x = 215,643.89 × 88,291.24
4. Step 4: Simplify right side
   156,271.41x = 19,039,466,128.14
5. Step 5: Solve for x
   x = 19,039,466,128.14/156,271.41
6. Step 6: Final answer
   x = 121,835.89