Finding the Fourth Proportional to 9,349.61, 12,900.15 and 5,714.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,349.61 : 12,900.15 = 5,714.73 : x
2. Step 2: Convert to fraction form
   9,349.61/12,900.15 = 5,714.73/x
3. Step 3: Cross multiply
   9,349.61x = 12,900.15 × 5,714.73
4. Step 4: Simplify right side
   9,349.61x = 73,720,866.06
5. Step 5: Solve for x
   x = 73,720,866.06/9,349.61
6. Step 6: Final answer
   x = 7,884.91