Finding the Fourth Proportional to 59,690.32, 89,554.96 and 28,528

Step by Step Solution

1. Step 1: Write the proportion equation
   59,690.32 : 89,554.96 = 28,528 : x
2. Step 2: Convert to fraction form
   59,690.32/89,554.96 = 28,528/x
3. Step 3: Cross multiply
   59,690.32x = 89,554.96 × 28,528
4. Step 4: Simplify right side
   59,690.32x = 2,554,823,898.88
5. Step 5: Solve for x
   x = 2,554,823,898.88/59,690.32
6. Step 6: Final answer
   x = 42,801.31