Finding the Fourth Proportional to 30,902.64, 42,645.72 and 16,755.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,902.64 : 42,645.72 = 16,755.48 : x
2. Step 2: Convert to fraction form
   30,902.64/42,645.72 = 16,755.48/x
3. Step 3: Cross multiply
   30,902.64x = 42,645.72 × 16,755.48
4. Step 4: Simplify right side
   30,902.64x = 714,549,508.55
5. Step 5: Solve for x
   x = 714,549,508.55/30,902.64
6. Step 6: Final answer
   x = 23,122.60