Finding the Fourth Proportional to 105,242.38, 157,095.85 and 91,956.22

Step by Step Solution

1. Step 1: Write the proportion equation
   105,242.38 : 157,095.85 = 91,956.22 : x
2. Step 2: Convert to fraction form
   105,242.38/157,095.85 = 91,956.22/x
3. Step 3: Cross multiply
   105,242.38x = 157,095.85 × 91,956.22
4. Step 4: Simplify right side
   105,242.38x = 14,445,940,543.69
5. Step 5: Solve for x
   x = 14,445,940,543.69/105,242.38
6. Step 6: Final answer
   x = 137,263.53