Finding the Fourth Proportional to 30,478.83, 42,058.81 and 17,047.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,478.83 : 42,058.81 = 17,047.76 : x
2. Step 2: Convert to fraction form
   30,478.83/42,058.81 = 17,047.76/x
3. Step 3: Cross multiply
   30,478.83x = 42,058.81 × 17,047.76
4. Step 4: Simplify right side
   30,478.83x = 717,008,498.77
5. Step 5: Solve for x
   x = 717,008,498.77/30,478.83
6. Step 6: Final answer
   x = 23,524.80