Finding the Fourth Proportional to 28,243.59, 42,402.29 and 23,888.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,243.59 : 42,402.29 = 23,888.72 : x
2. Step 2: Convert to fraction form
   28,243.59/42,402.29 = 23,888.72/x
3. Step 3: Cross multiply
   28,243.59x = 42,402.29 × 23,888.72
4. Step 4: Simplify right side
   28,243.59x = 1,012,936,419.73
5. Step 5: Solve for x
   x = 1,012,936,419.73/28,243.59
6. Step 6: Final answer
   x = 35,864.30