Finding the Fourth Proportional to 105,776.31, 158,632.88 and 55,828.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,776.31 : 158,632.88 = 55,828.88 : x
2. Step 2: Convert to fraction form
   105,776.31/158,632.88 = 55,828.88/x
3. Step 3: Cross multiply
   105,776.31x = 158,632.88 × 55,828.88
4. Step 4: Simplify right side
   105,776.31x = 8,856,295,858.18
5. Step 5: Solve for x
   x = 8,856,295,858.18/105,776.31
6. Step 6: Final answer
   x = 83,726.64