Finding the Fourth Proportional to 105,446.56, 158,014.32 and 58,686.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,446.56 : 158,014.32 = 58,686.88 : x
2. Step 2: Convert to fraction form
   105,446.56/158,014.32 = 58,686.88/x
3. Step 3: Cross multiply
   105,446.56x = 158,014.32 × 58,686.88
4. Step 4: Simplify right side
   105,446.56x = 9,273,367,436.12
5. Step 5: Solve for x
   x = 9,273,367,436.12/105,446.56
6. Step 6: Final answer
   x = 87,943.76