Finding the Fourth Proportional to 80,111.52, 120,174.14 and 20,947.09

Step by Step Solution

1. Step 1: Write the proportion equation
   80,111.52 : 120,174.14 = 20,947.09 : x
2. Step 2: Convert to fraction form
   80,111.52/120,174.14 = 20,947.09/x
3. Step 3: Cross multiply
   80,111.52x = 120,174.14 × 20,947.09
4. Step 4: Simplify right side
   80,111.52x = 2,517,298,526.25
5. Step 5: Solve for x
   x = 2,517,298,526.25/80,111.52
6. Step 6: Final answer
   x = 31,422.43