Finding the Fourth Proportional to 28,152.29, 42,240.69 and 17,646.39

Step by Step Solution

1. Step 1: Write the proportion equation
   28,152.29 : 42,240.69 = 17,646.39 : x
2. Step 2: Convert to fraction form
   28,152.29/42,240.69 = 17,646.39/x
3. Step 3: Cross multiply
   28,152.29x = 42,240.69 × 17,646.39
4. Step 4: Simplify right side
   28,152.29x = 745,395,689.61
5. Step 5: Solve for x
   x = 745,395,689.61/28,152.29
6. Step 6: Final answer
   x = 26,477.26