Finding the Fourth Proportional to 9,903.15, 14,856.39 and 3,663.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,903.15 : 14,856.39 = 3,663.18 : x
2. Step 2: Convert to fraction form
   9,903.15/14,856.39 = 3,663.18/x
3. Step 3: Cross multiply
   9,903.15x = 14,856.39 × 3,663.18
4. Step 4: Simplify right side
   9,903.15x = 54,421,630.72
5. Step 5: Solve for x
   x = 54,421,630.72/9,903.15
6. Step 6: Final answer
   x = 5,495.39