Finding the Fourth Proportional to 12,926.42, 17,837.18 and 7,259.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,926.42 : 17,837.18 = 7,259.88 : x
2. Step 2: Convert to fraction form
   12,926.42/17,837.18 = 7,259.88/x
3. Step 3: Cross multiply
   12,926.42x = 17,837.18 × 7,259.88
4. Step 4: Simplify right side
   12,926.42x = 129,495,786.34
5. Step 5: Solve for x
   x = 129,495,786.34/12,926.42
6. Step 6: Final answer
   x = 10,017.92