Finding the Fourth Proportional to 9,699.18, 14,549.31 and 3,859.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,699.18 : 14,549.31 = 3,859.98 : x
2. Step 2: Convert to fraction form
   9,699.18/14,549.31 = 3,859.98/x
3. Step 3: Cross multiply
   9,699.18x = 14,549.31 × 3,859.98
4. Step 4: Simplify right side
   9,699.18x = 56,160,045.61
5. Step 5: Solve for x
   x = 56,160,045.61/9,699.18
6. Step 6: Final answer
   x = 5,790.18