Finding the Fourth Proportional to 28,598.99, 42,899.00 and 8,877.04

Step by Step Solution

1. Step 1: Write the proportion equation
   28,598.99 : 42,899.00 = 8,877.04 : x
2. Step 2: Convert to fraction form
   28,598.99/42,899.00 = 8,877.04/x
3. Step 3: Cross multiply
   28,598.99x = 42,899.00 × 8,877.04
4. Step 4: Simplify right side
   28,598.99x = 380,815,987.33
5. Step 5: Solve for x
   x = 380,815,987.33/28,598.99
6. Step 6: Final answer
   x = 13,315.72