Finding the Fourth Proportional to 105,615.39, 158,432.82 and 34,538.40

Step by Step Solution

1. Step 1: Write the proportion equation
   105,615.39 : 158,432.82 = 34,538.40 : x
2. Step 2: Convert to fraction form
   105,615.39/158,432.82 = 34,538.40/x
3. Step 3: Cross multiply
   105,615.39x = 158,432.82 × 34,538.40
4. Step 4: Simplify right side
   105,615.39x = 5,472,016,110.29
5. Step 5: Solve for x
   x = 5,472,016,110.29/105,615.39
6. Step 6: Final answer
   x = 51,810.78