Finding the Fourth Proportional to 105,967.31, 158,764.15 and 55,937.18

Step by Step Solution

1. Step 1: Write the proportion equation
   105,967.31 : 158,764.15 = 55,937.18 : x
2. Step 2: Convert to fraction form
   105,967.31/158,764.15 = 55,937.18/x
3. Step 3: Cross multiply
   105,967.31x = 158,764.15 × 55,937.18
4. Step 4: Simplify right side
   105,967.31x = 8,880,819,302.93
5. Step 5: Solve for x
   x = 8,880,819,302.93/105,967.31
6. Step 6: Final answer
   x = 83,807.16