Finding the Fourth Proportional to 83,211.50, 114,882.72 and 54,167.42

Step by Step Solution

1. Step 1: Write the proportion equation
   83,211.50 : 114,882.72 = 54,167.42 : x
2. Step 2: Convert to fraction form
   83,211.50/114,882.72 = 54,167.42/x
3. Step 3: Cross multiply
   83,211.50x = 114,882.72 × 54,167.42
4. Step 4: Simplify right side
   83,211.50x = 6,222,900,544.98
5. Step 5: Solve for x
   x = 6,222,900,544.98/83,211.50
6. Step 6: Final answer
   x = 74,784.14