Finding the Fourth Proportional to 96,559.50, 133,241.31 and 54,111.90

Step by Step Solution

1. Step 1: Write the proportion equation
   96,559.50 : 133,241.31 = 54,111.90 : x
2. Step 2: Convert to fraction form
   96,559.50/133,241.31 = 54,111.90/x
3. Step 3: Cross multiply
   96,559.50x = 133,241.31 × 54,111.90
4. Step 4: Simplify right side
   96,559.50x = 7,209,940,442.59
5. Step 5: Solve for x
   x = 7,209,940,442.59/96,559.50
6. Step 6: Final answer
   x = 74,668.37