Finding the Fourth Proportional to 59,574.35, 89,225.43 and 28,431.47

Step by Step Solution

1. Step 1: Write the proportion equation
   59,574.35 : 89,225.43 = 28,431.47 : x
2. Step 2: Convert to fraction form
   59,574.35/89,225.43 = 28,431.47/x
3. Step 3: Cross multiply
   59,574.35x = 89,225.43 × 28,431.47
4. Step 4: Simplify right side
   59,574.35x = 2,536,810,136.28
5. Step 5: Solve for x
   x = 2,536,810,136.28/59,574.35
6. Step 6: Final answer
   x = 42,582.25