Finding the Fourth Proportional to 30,899.02, 42,640.56 and 16,751.86

Step by Step Solution

1. Step 1: Write the proportion equation
   30,899.02 : 42,640.56 = 16,751.86 : x
2. Step 2: Convert to fraction form
   30,899.02/42,640.56 = 16,751.86/x
3. Step 3: Cross multiply
   30,899.02x = 42,640.56 × 16,751.86
4. Step 4: Simplify right side
   30,899.02x = 714,308,691.44
5. Step 5: Solve for x
   x = 714,308,691.44/30,899.02
6. Step 6: Final answer
   x = 23,117.52