Finding the Fourth Proportional to 105,978.90, 159,022.86 and 58,585.14

Step by Step Solution

1. Step 1: Write the proportion equation
   105,978.90 : 159,022.86 = 58,585.14 : x
2. Step 2: Convert to fraction form
   105,978.90/159,022.86 = 58,585.14/x
3. Step 3: Cross multiply
   105,978.90x = 159,022.86 × 58,585.14
4. Step 4: Simplify right side
   105,978.90x = 9,316,376,516.30
5. Step 5: Solve for x
   x = 9,316,376,516.30/105,978.90
6. Step 6: Final answer
   x = 87,907.84