Finding the Fourth Proportional to 156,124.46, 215,443.47 and 91,584.77

Step by Step Solution

1. Step 1: Write the proportion equation
   156,124.46 : 215,443.47 = 91,584.77 : x
2. Step 2: Convert to fraction form
   156,124.46/215,443.47 = 91,584.77/x
3. Step 3: Cross multiply
   156,124.46x = 215,443.47 × 91,584.77
4. Step 4: Simplify right side
   156,124.46x = 19,731,339,570.73
5. Step 5: Solve for x
   x = 19,731,339,570.73/156,124.46
6. Step 6: Final answer
   x = 126,382.12