Finding the Fourth Proportional to 84,100.69, 126,151.02 and 57,725.47

Step by Step Solution

1. Step 1: Write the proportion equation
   84,100.69 : 126,151.02 = 57,725.47 : x
2. Step 2: Convert to fraction form
   84,100.69/126,151.02 = 57,725.47/x
3. Step 3: Cross multiply
   84,100.69x = 126,151.02 × 57,725.47
4. Step 4: Simplify right side
   84,100.69x = 7,282,127,078.17
5. Step 5: Solve for x
   x = 7,282,127,078.17/84,100.69
6. Step 6: Final answer
   x = 86,588.20