Finding the Fourth Proportional to 30,759.31, 42,447.86 and 16,612.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,759.31 : 42,447.86 = 16,612.16 : x
2. Step 2: Convert to fraction form
   30,759.31/42,447.86 = 16,612.16/x
3. Step 3: Cross multiply
   30,759.31x = 42,447.86 × 16,612.16
4. Step 4: Simplify right side
   30,759.31x = 705,150,641.98
5. Step 5: Solve for x
   x = 705,150,641.98/30,759.31
6. Step 6: Final answer
   x = 22,924.79