Finding the Fourth Proportional to 12,830.40, 17,707.20 and 7,793.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830.40 : 17,707.20 = 7,793.52 : x
2. Step 2: Convert to fraction form
   12,830.40/17,707.20 = 7,793.52/x
3. Step 3: Cross multiply
   12,830.40x = 17,707.20 × 7,793.52
4. Step 4: Simplify right side
   12,830.40x = 138,001,417.34
5. Step 5: Solve for x
   x = 138,001,417.34/12,830.40
6. Step 6: Final answer
   x = 10,755.82