Finding the Fourth Proportional to 10,916.95, 16,361.72 and 4,669.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,916.95 : 16,361.72 = 4,669.61 : x
2. Step 2: Convert to fraction form
   10,916.95/16,361.72 = 4,669.61/x
3. Step 3: Cross multiply
   10,916.95x = 16,361.72 × 4,669.61
4. Step 4: Simplify right side
   10,916.95x = 76,402,827.98
5. Step 5: Solve for x
   x = 76,402,827.98/10,916.95
6. Step 6: Final answer
   x = 6,998.55