Finding the Fourth Proportional to 12,697.74, 17,521.56 and 7,392.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,697.74 : 17,521.56 = 7,392.06 : x
2. Step 2: Convert to fraction form
   12,697.74/17,521.56 = 7,392.06/x
3. Step 3: Cross multiply
   12,697.74x = 17,521.56 × 7,392.06
4. Step 4: Simplify right side
   12,697.74x = 129,520,422.81
5. Step 5: Solve for x
   x = 129,520,422.81/12,697.74
6. Step 6: Final answer
   x = 10,200.27