Finding the Fourth Proportional to 105,791.84, 158,631.92 and 55,898.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,791.84 : 158,631.92 = 55,898.72 : x
2. Step 2: Convert to fraction form
   105,791.84/158,631.92 = 55,898.72/x
3. Step 3: Cross multiply
   105,791.84x = 158,631.92 × 55,898.72
4. Step 4: Simplify right side
   105,791.84x = 8,867,321,279.14
5. Step 5: Solve for x
   x = 8,867,321,279.14/105,791.84
6. Step 6: Final answer
   x = 83,818.58