Finding the Fourth Proportional to 11,477.52, 15,808.80 and 8,819.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,477.52 : 15,808.80 = 8,819.84 : x
2. Step 2: Convert to fraction form
   11,477.52/15,808.80 = 8,819.84/x
3. Step 3: Cross multiply
   11,477.52x = 15,808.80 × 8,819.84
4. Step 4: Simplify right side
   11,477.52x = 139,431,086.59
5. Step 5: Solve for x
   x = 139,431,086.59/11,477.52
6. Step 6: Final answer
   x = 12,148.19