Finding the Fourth Proportional to 105,613.91, 158,753.02 and 91,746.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,613.91 : 158,753.02 = 91,746.62 : x
2. Step 2: Convert to fraction form
   105,613.91/158,753.02 = 91,746.62/x
3. Step 3: Cross multiply
   105,613.91x = 158,753.02 × 91,746.62
4. Step 4: Simplify right side
   105,613.91x = 14,565,053,167.31
5. Step 5: Solve for x
   x = 14,565,053,167.31/105,613.91
6. Step 6: Final answer
   x = 137,908.47