Finding the Fourth Proportional to 23,012.52, 34,498.12 and 8,219.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,012.52 : 34,498.12 = 8,219.28 : x
2. Step 2: Convert to fraction form
   23,012.52/34,498.12 = 8,219.28/x
3. Step 3: Cross multiply
   23,012.52x = 34,498.12 × 8,219.28
4. Step 4: Simplify right side
   23,012.52x = 283,549,707.75
5. Step 5: Solve for x
   x = 283,549,707.75/23,012.52
6. Step 6: Final answer
   x = 12,321.54