Finding the Fourth Proportional to 42,947.39, 64,427.15 and 16,654.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,947.39 : 64,427.15 = 16,654.79 : x
2. Step 2: Convert to fraction form
   42,947.39/64,427.15 = 16,654.79/x
3. Step 3: Cross multiply
   42,947.39x = 64,427.15 × 16,654.79
4. Step 4: Simplify right side
   42,947.39x = 1,073,020,373.05
5. Step 5: Solve for x
   x = 1,073,020,373.05/42,947.39
6. Step 6: Final answer
   x = 24,984.53