Finding the Fourth Proportional to 12,749.42, 17,592.90 and 7,447.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,749.42 : 17,592.90 = 7,447.32 : x
2. Step 2: Convert to fraction form
   12,749.42/17,592.90 = 7,447.32/x
3. Step 3: Cross multiply
   12,749.42x = 17,592.90 × 7,447.32
4. Step 4: Simplify right side
   12,749.42x = 131,019,956.03
5. Step 5: Solve for x
   x = 131,019,956.03/12,749.42
6. Step 6: Final answer
   x = 10,276.55