Finding the Fourth Proportional to 84,061.48, 126,007.16 and 54,498.10

Step by Step Solution

1. Step 1: Write the proportion equation
   84,061.48 : 126,007.16 = 54,498.10 : x
2. Step 2: Convert to fraction form
   84,061.48/126,007.16 = 54,498.10/x
3. Step 3: Cross multiply
   84,061.48x = 126,007.16 × 54,498.10
4. Step 4: Simplify right side
   84,061.48x = 6,867,150,806.40
5. Step 5: Solve for x
   x = 6,867,150,806.40/84,061.48
6. Step 6: Final answer
   x = 81,692.00