Finding the Fourth Proportional to 28,499.08, 42,943.15 and 23,418.76

Step by Step Solution

1. Step 1: Write the proportion equation
   28,499.08 : 42,943.15 = 23,418.76 : x
2. Step 2: Convert to fraction form
   28,499.08/42,943.15 = 23,418.76/x
3. Step 3: Cross multiply
   28,499.08x = 42,943.15 × 23,418.76
4. Step 4: Simplify right side
   28,499.08x = 1,005,675,323.49
5. Step 5: Solve for x
   x = 1,005,675,323.49/28,499.08
6. Step 6: Final answer
   x = 35,287.99