Finding the Fourth Proportional to 10,279.13, 14,185.31 and 5,563.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,279.13 : 14,185.31 = 5,563.51 : x
2. Step 2: Convert to fraction form
   10,279.13/14,185.31 = 5,563.51/x
3. Step 3: Cross multiply
   10,279.13x = 14,185.31 × 5,563.51
4. Step 4: Simplify right side
   10,279.13x = 78,920,050.76
5. Step 5: Solve for x
   x = 78,920,050.76/10,279.13
6. Step 6: Final answer
   x = 7,677.70