Finding the Fourth Proportional to 146,978.38, 202,824.29 and 86,551.57

Step by Step Solution

1. Step 1: Write the proportion equation
   146,978.38 : 202,824.29 = 86,551.57 : x
2. Step 2: Convert to fraction form
   146,978.38/202,824.29 = 86,551.57/x
3. Step 3: Cross multiply
   146,978.38x = 202,824.29 × 86,551.57
4. Step 4: Simplify right side
   146,978.38x = 17,554,759,286.76
5. Step 5: Solve for x
   x = 17,554,759,286.76/146,978.38
6. Step 6: Final answer
   x = 119,437.70