Finding the Fourth Proportional to 71,963.06, 99,386.48 and 54,784.04

Step by Step Solution

1. Step 1: Write the proportion equation
   71,963.06 : 99,386.48 = 54,784.04 : x
2. Step 2: Convert to fraction form
   71,963.06/99,386.48 = 54,784.04/x
3. Step 3: Cross multiply
   71,963.06x = 99,386.48 × 54,784.04
4. Step 4: Simplify right side
   71,963.06x = 5,444,792,621.86
5. Step 5: Solve for x
   x = 5,444,792,621.86/71,963.06
6. Step 6: Final answer
   x = 75,660.94