Finding the Fourth Proportional to 28,079.58, 42,119.20 and 7,019.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,079.58 : 42,119.20 = 7,019.52 : x
2. Step 2: Convert to fraction form
   28,079.58/42,119.20 = 7,019.52/x
3. Step 3: Cross multiply
   28,079.58x = 42,119.20 × 7,019.52
4. Step 4: Simplify right side
   28,079.58x = 295,656,566.78
5. Step 5: Solve for x
   x = 295,656,566.78/28,079.58
6. Step 6: Final answer
   x = 10,529.24