Finding the Fourth Proportional to 30,865.56, 42,594.15 and 17,436.79

Step by Step Solution

1. Step 1: Write the proportion equation
   30,865.56 : 42,594.15 = 17,436.79 : x
2. Step 2: Convert to fraction form
   30,865.56/42,594.15 = 17,436.79/x
3. Step 3: Cross multiply
   30,865.56x = 42,594.15 × 17,436.79
4. Step 4: Simplify right side
   30,865.56x = 742,705,248.78
5. Step 5: Solve for x
   x = 742,705,248.78/30,865.56
6. Step 6: Final answer
   x = 24,062.59