Finding the Fourth Proportional to 10,453.88, 14,427.38 and 5,978.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,453.88 : 14,427.38 = 5,978.30 : x
2. Step 2: Convert to fraction form
   10,453.88/14,427.38 = 5,978.30/x
3. Step 3: Cross multiply
   10,453.88x = 14,427.38 × 5,978.30
4. Step 4: Simplify right side
   10,453.88x = 86,251,148.66
5. Step 5: Solve for x
   x = 86,251,148.66/10,453.88
6. Step 6: Final answer
   x = 8,250.63