Finding the Fourth Proportional to 30,713.86, 42,385.96 and 17,285.59

Step by Step Solution

1. Step 1: Write the proportion equation
   30,713.86 : 42,385.96 = 17,285.59 : x
2. Step 2: Convert to fraction form
   30,713.86/42,385.96 = 17,285.59/x
3. Step 3: Cross multiply
   30,713.86x = 42,385.96 × 17,285.59
4. Step 4: Simplify right side
   30,713.86x = 732,666,326.32
5. Step 5: Solve for x
   x = 732,666,326.32/30,713.86
6. Step 6: Final answer
   x = 23,854.58