Finding the Fourth Proportional to 71,945.40, 99,171.18 and 54,014.52

Step by Step Solution

1. Step 1: Write the proportion equation
   71,945.40 : 99,171.18 = 54,014.52 : x
2. Step 2: Convert to fraction form
   71,945.40/99,171.18 = 54,014.52/x
3. Step 3: Cross multiply
   71,945.40x = 99,171.18 × 54,014.52
4. Step 4: Simplify right side
   71,945.40x = 5,356,683,685.53
5. Step 5: Solve for x
   x = 5,356,683,685.53/71,945.40
6. Step 6: Final answer
   x = 74,454.85