Finding the Fourth Proportional to 9,031.72, 12,437.76 and 7,445.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,031.72 : 12,437.76 = 7,445.23 : x
2. Step 2: Convert to fraction form
   9,031.72/12,437.76 = 7,445.23/x
3. Step 3: Cross multiply
   9,031.72x = 12,437.76 × 7,445.23
4. Step 4: Simplify right side
   9,031.72x = 92,601,983.88
5. Step 5: Solve for x
   x = 92,601,983.88/9,031.72
6. Step 6: Final answer
   x = 10,252.97