Finding the Fourth Proportional to 12,742.95, 17,587.38 and 7,079.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,742.95 : 17,587.38 = 7,079.52 : x
2. Step 2: Convert to fraction form
   12,742.95/17,587.38 = 7,079.52/x
3. Step 3: Cross multiply
   12,742.95x = 17,587.38 × 7,079.52
4. Step 4: Simplify right side
   12,742.95x = 124,510,208.46
5. Step 5: Solve for x
   x = 124,510,208.46/12,742.95
6. Step 6: Final answer
   x = 9,770.91