Finding the Fourth Proportional to 156,738.17, 216,286.69 and 92,209.97

Step by Step Solution

1. Step 1: Write the proportion equation
   156,738.17 : 216,286.69 = 92,209.97 : x
2. Step 2: Convert to fraction form
   156,738.17/216,286.69 = 92,209.97/x
3. Step 3: Cross multiply
   156,738.17x = 216,286.69 × 92,209.97
4. Step 4: Simplify right side
   156,738.17x = 19,943,789,196.30
5. Step 5: Solve for x
   x = 19,943,789,196.30/156,738.17
6. Step 6: Final answer
   x = 127,242.71