Finding the Fourth Proportional to 12,748.74, 17,601.72 and 9,395.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748.74 : 17,601.72 = 9,395.34 : x
2. Step 2: Convert to fraction form
   12,748.74/17,601.72 = 9,395.34/x
3. Step 3: Cross multiply
   12,748.74x = 17,601.72 × 9,395.34
4. Step 4: Simplify right side
   12,748.74x = 165,374,143.98
5. Step 5: Solve for x
   x = 165,374,143.98/12,748.74
6. Step 6: Final answer
   x = 12,971.80