Finding the Fourth Proportional to 105,754.10, 158,319.50 and 92,632.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,754.10 : 158,319.50 = 92,632.10 : x
2. Step 2: Convert to fraction form
   105,754.10/158,319.50 = 92,632.10/x
3. Step 3: Cross multiply
   105,754.10x = 158,319.50 × 92,632.10
4. Step 4: Simplify right side
   105,754.10x = 14,665,466,501.19
5. Step 5: Solve for x
   x = 14,665,466,501.19/105,754.10
6. Step 6: Final answer
   x = 138,675.16