Finding the Fourth Proportional to 19,200.04, 28,788.16 and 7,499.52

Step by Step Solution

1. Step 1: Write the proportion equation
   19,200.04 : 28,788.16 = 7,499.52 : x
2. Step 2: Convert to fraction form
   19,200.04/28,788.16 = 7,499.52/x
3. Step 3: Cross multiply
   19,200.04x = 28,788.16 × 7,499.52
4. Step 4: Simplify right side
   19,200.04x = 215,897,381.68
5. Step 5: Solve for x
   x = 215,897,381.68/19,200.04
6. Step 6: Final answer
   x = 11,244.63