Finding the Fourth Proportional to 59,595.75, 89,404.56 and 28,431

Step by Step Solution

1. Step 1: Write the proportion equation
   59,595.75 : 89,404.56 = 28,431 : x
2. Step 2: Convert to fraction form
   59,595.75/89,404.56 = 28,431/x
3. Step 3: Cross multiply
   59,595.75x = 89,404.56 × 28,431
4. Step 4: Simplify right side
   59,595.75x = 2,541,861,045.36
5. Step 5: Solve for x
   x = 2,541,861,045.36/59,595.75
6. Step 6: Final answer
   x = 42,651.72