Finding the Fourth Proportional to 81,216.66, 121,836.42 and 25,061.33

Step by Step Solution

1. Step 1: Write the proportion equation
   81,216.66 : 121,836.42 = 25,061.33 : x
2. Step 2: Convert to fraction form
   81,216.66/121,836.42 = 25,061.33/x
3. Step 3: Cross multiply
   81,216.66x = 121,836.42 × 25,061.33
4. Step 4: Simplify right side
   81,216.66x = 3,053,382,118.46
5. Step 5: Solve for x
   x = 3,053,382,118.46/81,216.66
6. Step 6: Final answer
   x = 37,595.51