Finding the Fourth Proportional to 156,020.56, 215,296.52 and 88,043.86

Step by Step Solution

1. Step 1: Write the proportion equation
   156,020.56 : 215,296.52 = 88,043.86 : x
2. Step 2: Convert to fraction form
   156,020.56/215,296.52 = 88,043.86/x
3. Step 3: Cross multiply
   156,020.56x = 215,296.52 × 88,043.86
4. Step 4: Simplify right side
   156,020.56x = 18,955,536,665.37
5. Step 5: Solve for x
   x = 18,955,536,665.37/156,020.56
6. Step 6: Final answer
   x = 121,493.84