Finding the Fourth Proportional to 85,711.69, 128,566.17 and 23,382.19

Step by Step Solution

1. Step 1: Write the proportion equation
   85,711.69 : 128,566.17 = 23,382.19 : x
2. Step 2: Convert to fraction form
   85,711.69/128,566.17 = 23,382.19/x
3. Step 3: Cross multiply
   85,711.69x = 128,566.17 × 23,382.19
4. Step 4: Simplify right side
   85,711.69x = 3,006,158,775.22
5. Step 5: Solve for x
   x = 3,006,158,775.22/85,711.69
6. Step 6: Final answer
   x = 35,072.91