Finding the Fourth Proportional to 156,698.56, 216,222.24 and 92,170.72

Step by Step Solution

1. Step 1: Write the proportion equation
   156,698.56 : 216,222.24 = 92,170.72 : x
2. Step 2: Convert to fraction form
   156,698.56/216,222.24 = 92,170.72/x
3. Step 3: Cross multiply
   156,698.56x = 216,222.24 × 92,170.72
4. Step 4: Simplify right side
   156,698.56x = 19,929,359,540.81
5. Step 5: Solve for x
   x = 19,929,359,540.81/156,698.56
6. Step 6: Final answer
   x = 127,182.79