Finding the Fourth Proportional to 59,615.84, 89,287.60 and 28,473.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,615.84 : 89,287.60 = 28,473.12 : x
2. Step 2: Convert to fraction form
   59,615.84/89,287.60 = 28,473.12/x
3. Step 3: Cross multiply
   59,615.84x = 89,287.60 × 28,473.12
4. Step 4: Simplify right side
   59,615.84x = 2,542,296,549.31
5. Step 5: Solve for x
   x = 2,542,296,549.31/59,615.84
6. Step 6: Final answer
   x = 42,644.65