Finding the Fourth Proportional to 28,181.98, 42,291.42 and 10,651.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,181.98 : 42,291.42 = 10,651.82 : x
2. Step 2: Convert to fraction form
   28,181.98/42,291.42 = 10,651.82/x
3. Step 3: Cross multiply
   28,181.98x = 42,291.42 × 10,651.82
4. Step 4: Simplify right side
   28,181.98x = 450,480,593.38
5. Step 5: Solve for x
   x = 450,480,593.38/28,181.98
6. Step 6: Final answer
   x = 15,984.70