Finding the Fourth Proportional to 16,875.78, 25,317.25 and 5,779.49

Step by Step Solution

1. Step 1: Write the proportion equation
   16,875.78 : 25,317.25 = 5,779.49 : x
2. Step 2: Convert to fraction form
   16,875.78/25,317.25 = 5,779.49/x
3. Step 3: Cross multiply
   16,875.78x = 25,317.25 × 5,779.49
4. Step 4: Simplify right side
   16,875.78x = 146,320,637.72
5. Step 5: Solve for x
   x = 146,320,637.72/16,875.78
6. Step 6: Final answer
   x = 8,670.45