Finding the Fourth Proportional to 17,670.80, 24,385.40 and 9,712.84

Step by Step Solution

1. Step 1: Write the proportion equation
   17,670.80 : 24,385.40 = 9,712.84 : x
2. Step 2: Convert to fraction form
   17,670.80/24,385.40 = 9,712.84/x
3. Step 3: Cross multiply
   17,670.80x = 24,385.40 × 9,712.84
4. Step 4: Simplify right side
   17,670.80x = 236,851,488.54
5. Step 5: Solve for x
   x = 236,851,488.54/17,670.80
6. Step 6: Final answer
   x = 13,403.55