Finding the Fourth Proportional to 156,473.05, 215,944.71 and 88,491.37

Step by Step Solution

1. Step 1: Write the proportion equation
   156,473.05 : 215,944.71 = 88,491.37 : x
2. Step 2: Convert to fraction form
   156,473.05/215,944.71 = 88,491.37/x
3. Step 3: Cross multiply
   156,473.05x = 215,944.71 × 88,491.37
4. Step 4: Simplify right side
   156,473.05x = 19,109,242,152.43
5. Step 5: Solve for x
   x = 19,109,242,152.43/156,473.05
6. Step 6: Final answer
   x = 122,124.82