Finding the Fourth Proportional to 172,036.29, 257,763.24 and 105,337.15

Step by Step Solution

1. Step 1: Write the proportion equation
   172,036.29 : 257,763.24 = 105,337.15 : x
2. Step 2: Convert to fraction form
   172,036.29/257,763.24 = 105,337.15/x
3. Step 3: Cross multiply
   172,036.29x = 257,763.24 × 105,337.15
4. Step 4: Simplify right side
   172,036.29x = 27,152,045,076.37
5. Step 5: Solve for x
   x = 27,152,045,076.37/172,036.29
6. Step 6: Final answer
   x = 157,827.43