Finding the Fourth Proportional to 136,162.62, 187,827.72 and 81,700.71

Step by Step Solution

1. Step 1: Write the proportion equation
   136,162.62 : 187,827.72 = 81,700.71 : x
2. Step 2: Convert to fraction form
   136,162.62/187,827.72 = 81,700.71/x
3. Step 3: Cross multiply
   136,162.62x = 187,827.72 × 81,700.71
4. Step 4: Simplify right side
   136,162.62x = 15,345,658,081.68
5. Step 5: Solve for x
   x = 15,345,658,081.68/136,162.62
6. Step 6: Final answer
   x = 112,700.96