Finding the Fourth Proportional to 9,894.40, 14,840.00 and 3,657.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,894.40 : 14,840.00 = 3,657.35 : x
2. Step 2: Convert to fraction form
   9,894.40/14,840.00 = 3,657.35/x
3. Step 3: Cross multiply
   9,894.40x = 14,840.00 × 3,657.35
4. Step 4: Simplify right side
   9,894.40x = 54,275,055.71
5. Step 5: Solve for x
   x = 54,275,055.71/9,894.40
6. Step 6: Final answer
   x = 5,485.43