Finding the Fourth Proportional to 9,903.40, 14,854.72 and 2,977.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,903.40 : 14,854.72 = 2,977.72 : x
2. Step 2: Convert to fraction form
   9,903.40/14,854.72 = 2,977.72/x
3. Step 3: Cross multiply
   9,903.40x = 14,854.72 × 2,977.72
4. Step 4: Simplify right side
   9,903.40x = 44,233,196.84
5. Step 5: Solve for x
   x = 44,233,196.84/9,903.40
6. Step 6: Final answer
   x = 4,466.47