Finding the Fourth Proportional to 12,795.42, 17,657.34 and 7,130.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,795.42 : 17,657.34 = 7,130.18 : x
2. Step 2: Convert to fraction form
   12,795.42/17,657.34 = 7,130.18/x
3. Step 3: Cross multiply
   12,795.42x = 17,657.34 × 7,130.18
4. Step 4: Simplify right side
   12,795.42x = 125,900,012.52
5. Step 5: Solve for x
   x = 125,900,012.52/12,795.42
6. Step 6: Final answer
   x = 9,839.46