Finding the Fourth Proportional to 9,916.31, 14,870.91 and 2,894.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,916.31 : 14,870.91 = 2,894.49 : x
2. Step 2: Convert to fraction form
   9,916.31/14,870.91 = 2,894.49/x
3. Step 3: Cross multiply
   9,916.31x = 14,870.91 × 2,894.49
4. Step 4: Simplify right side
   9,916.31x = 43,043,700.29
5. Step 5: Solve for x
   x = 43,043,700.29/9,916.31
6. Step 6: Final answer
   x = 4,340.70