Finding the Fourth Proportional to 28,314.12, 42,467.91 and 7,539.24

Step by Step Solution

1. Step 1: Write the proportion equation
   28,314.12 : 42,467.91 = 7,539.24 : x
2. Step 2: Convert to fraction form
   28,314.12/42,467.91 = 7,539.24/x
3. Step 3: Cross multiply
   28,314.12x = 42,467.91 × 7,539.24
4. Step 4: Simplify right side
   28,314.12x = 320,175,765.79
5. Step 5: Solve for x
   x = 320,175,765.79/28,314.12
6. Step 6: Final answer
   x = 11,307.99