Finding the Fourth Proportional to 30,689.77, 42,352.32 and 18,114.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,689.77 : 42,352.32 = 18,114.52 : x
2. Step 2: Convert to fraction form
   30,689.77/42,352.32 = 18,114.52/x
3. Step 3: Cross multiply
   30,689.77x = 42,352.32 × 18,114.52
4. Step 4: Simplify right side
   30,689.77x = 767,191,947.69
5. Step 5: Solve for x
   x = 767,191,947.69/30,689.77
6. Step 6: Final answer
   x = 24,998.30