Finding the Fourth Proportional to 105,603.12, 158,387.76 and 34,525.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,603.12 : 158,387.76 = 34,525.20 : x
2. Step 2: Convert to fraction form
   105,603.12/158,387.76 = 34,525.20/x
3. Step 3: Cross multiply
   105,603.12x = 158,387.76 × 34,525.20
4. Step 4: Simplify right side
   105,603.12x = 5,468,369,091.55
5. Step 5: Solve for x
   x = 5,468,369,091.55/105,603.12
6. Step 6: Final answer
   x = 51,782.27