Finding the Fourth Proportional to 28,292.48, 42,443.12 and 8,566.34

Step by Step Solution

1. Step 1: Write the proportion equation
   28,292.48 : 42,443.12 = 8,566.34 : x
2. Step 2: Convert to fraction form
   28,292.48/42,443.12 = 8,566.34/x
3. Step 3: Cross multiply
   28,292.48x = 42,443.12 × 8,566.34
4. Step 4: Simplify right side
   28,292.48x = 363,581,941.53
5. Step 5: Solve for x
   x = 363,581,941.53/28,292.48
6. Step 6: Final answer
   x = 12,850.84