Finding the Fourth Proportional to 86,437.72, 119,283.61 and 50,146.51

Step by Step Solution

1. Step 1: Write the proportion equation
   86,437.72 : 119,283.61 = 50,146.51 : x
2. Step 2: Convert to fraction form
   86,437.72/119,283.61 = 50,146.51/x
3. Step 3: Cross multiply
   86,437.72x = 119,283.61 × 50,146.51
4. Step 4: Simplify right side
   86,437.72x = 5,981,656,145.28
5. Step 5: Solve for x
   x = 5,981,656,145.28/86,437.72
6. Step 6: Final answer
   x = 69,201.92