Finding the Fourth Proportional to 105,005.55, 157,508.89 and 26,119.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,005.55 : 157,508.89 = 26,119.78 : x
2. Step 2: Convert to fraction form
   105,005.55/157,508.89 = 26,119.78/x
3. Step 3: Cross multiply
   105,005.55x = 157,508.89 × 26,119.78
4. Step 4: Simplify right side
   105,005.55x = 4,114,096,767.30
5. Step 5: Solve for x
   x = 4,114,096,767.30/105,005.55
6. Step 6: Final answer
   x = 39,179.80