Finding the Fourth Proportional to 30,899.79, 42,641.73 and 16,752.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,899.79 : 42,641.73 = 16,752.69 : x
2. Step 2: Convert to fraction form
   30,899.79/42,641.73 = 16,752.69/x
3. Step 3: Cross multiply
   30,899.79x = 42,641.73 × 16,752.69
4. Step 4: Simplify right side
   30,899.79x = 714,363,683.75
5. Step 5: Solve for x
   x = 714,363,683.75/30,899.79
6. Step 6: Final answer
   x = 23,118.72