Finding the Fourth Proportional to 9,904.64, 14,819.52 and 5,940.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,904.64 : 14,819.52 = 5,940.80 : x
2. Step 2: Convert to fraction form
   9,904.64/14,819.52 = 5,940.80/x
3. Step 3: Cross multiply
   9,904.64x = 14,819.52 × 5,940.80
4. Step 4: Simplify right side
   9,904.64x = 88,039,804.42
5. Step 5: Solve for x
   x = 88,039,804.42/9,904.64
6. Step 6: Final answer
   x = 8,888.74