Finding the Fourth Proportional to 9,978.44, 14,948.48 and 5,582.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.44 : 14,948.48 = 5,582.58 : x
2. Step 2: Convert to fraction form
   9,978.44/14,948.48 = 5,582.58/x
3. Step 3: Cross multiply
   9,978.44x = 14,948.48 × 5,582.58
4. Step 4: Simplify right side
   9,978.44x = 83,451,085.48
5. Step 5: Solve for x
   x = 83,451,085.48/9,978.44
6. Step 6: Final answer
   x = 8,363.14