Finding the Fourth Proportional to 59,710.84, 89,430.10 and 28,568.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,710.84 : 89,430.10 = 28,568.12 : x
2. Step 2: Convert to fraction form
   59,710.84/89,430.10 = 28,568.12/x
3. Step 3: Cross multiply
   59,710.84x = 89,430.10 × 28,568.12
4. Step 4: Simplify right side
   59,710.84x = 2,554,849,828.41
5. Step 5: Solve for x
   x = 2,554,849,828.41/59,710.84
6. Step 6: Final answer
   x = 42,787.04