Finding the Fourth Proportional to 10,347.30, 14,279.04 and 5,631.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,347.30 : 14,279.04 = 5,631.48 : x
2. Step 2: Convert to fraction form
   10,347.30/14,279.04 = 5,631.48/x
3. Step 3: Cross multiply
   10,347.30x = 14,279.04 × 5,631.48
4. Step 4: Simplify right side
   10,347.30x = 80,412,128.18
5. Step 5: Solve for x
   x = 80,412,128.18/10,347.30
6. Step 6: Final answer
   x = 7,771.32