Finding the Fourth Proportional to 185,641.61, 278,502.89 and 105,717.33

Step by Step Solution

1. Step 1: Write the proportion equation
   185,641.61 : 278,502.89 = 105,717.33 : x
2. Step 2: Convert to fraction form
   185,641.61/278,502.89 = 105,717.33/x
3. Step 3: Cross multiply
   185,641.61x = 278,502.89 × 105,717.33
4. Step 4: Simplify right side
   185,641.61x = 29,442,581,399.50
5. Step 5: Solve for x
   x = 29,442,581,399.50/185,641.61
6. Step 6: Final answer
   x = 158,599.05