Finding the Fourth Proportional to 85,288.17, 117,666.90 and 50,825.91

Step by Step Solution

1. Step 1: Write the proportion equation
   85,288.17 : 117,666.90 = 50,825.91 : x
2. Step 2: Convert to fraction form
   85,288.17/117,666.90 = 50,825.91/x
3. Step 3: Cross multiply
   85,288.17x = 117,666.90 × 50,825.91
4. Step 4: Simplify right side
   85,288.17x = 5,980,527,269.38
5. Step 5: Solve for x
   x = 5,980,527,269.38/85,288.17
6. Step 6: Final answer
   x = 70,121.42