Finding the Fourth Proportional to 9,339.92, 12,875.69 and 7,347.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,339.92 : 12,875.69 = 7,347.02 : x
2. Step 2: Convert to fraction form
   9,339.92/12,875.69 = 7,347.02/x
3. Step 3: Cross multiply
   9,339.92x = 12,875.69 × 7,347.02
4. Step 4: Simplify right side
   9,339.92x = 94,597,905.93
5. Step 5: Solve for x
   x = 94,597,905.93/9,339.92
6. Step 6: Final answer
   x = 10,128.34