Finding the Fourth Proportional to 10,259.32, 14,157.86 and 5,543.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,259.32 : 14,157.86 = 5,543.59 : x
2. Step 2: Convert to fraction form
   10,259.32/14,157.86 = 5,543.59/x
3. Step 3: Cross multiply
   10,259.32x = 14,157.86 × 5,543.59
4. Step 4: Simplify right side
   10,259.32x = 78,485,343.40
5. Step 5: Solve for x
   x = 78,485,343.40/10,259.32
6. Step 6: Final answer
   x = 7,650.15