Finding the Fourth Proportional to 10,454.77, 14,428.73 and 5,978.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,454.77 : 14,428.73 = 5,978.94 : x
2. Step 2: Convert to fraction form
   10,454.77/14,428.73 = 5,978.94/x
3. Step 3: Cross multiply
   10,454.77x = 14,428.73 × 5,978.94
4. Step 4: Simplify right side
   10,454.77x = 86,268,512.37
5. Step 5: Solve for x
   x = 86,268,512.37/10,454.77
6. Step 6: Final answer
   x = 8,251.59