Finding the Fourth Proportional to 60,865.76, 84,018.15 and 54,481.07

Step by Step Solution

1. Step 1: Write the proportion equation
   60,865.76 : 84,018.15 = 54,481.07 : x
2. Step 2: Convert to fraction form
   60,865.76/84,018.15 = 54,481.07/x
3. Step 3: Cross multiply
   60,865.76x = 84,018.15 × 54,481.07
4. Step 4: Simplify right side
   60,865.76x = 4,577,398,291.33
5. Step 5: Solve for x
   x = 4,577,398,291.33/60,865.76
6. Step 6: Final answer
   x = 75,204.82