Finding the Fourth Proportional to 136,404.65, 188,247.89 and 82,691.93

Step by Step Solution

1. Step 1: Write the proportion equation
   136,404.65 : 188,247.89 = 82,691.93 : x
2. Step 2: Convert to fraction form
   136,404.65/188,247.89 = 82,691.93/x
3. Step 3: Cross multiply
   136,404.65x = 188,247.89 × 82,691.93
4. Step 4: Simplify right side
   136,404.65x = 15,566,581,399.69
5. Step 5: Solve for x
   x = 15,566,581,399.69/136,404.65
6. Step 6: Final answer
   x = 114,120.60