Finding the Fourth Proportional to 105,986.64, 159,003.31 and 58,670.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,986.64 : 159,003.31 = 58,670.74 : x
2. Step 2: Convert to fraction form
   105,986.64/159,003.31 = 58,670.74/x
3. Step 3: Cross multiply
   105,986.64x = 159,003.31 × 58,670.74
4. Step 4: Simplify right side
   105,986.64x = 9,328,841,860.15
5. Step 5: Solve for x
   x = 9,328,841,860.15/105,986.64
6. Step 6: Final answer
   x = 88,019.04