Finding the Fourth Proportional to 10,990.95, 16,490.06 and 7,307.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.95 : 16,490.06 = 7,307.67 : x
2. Step 2: Convert to fraction form
   10,990.95/16,490.06 = 7,307.67/x
3. Step 3: Cross multiply
   10,990.95x = 16,490.06 × 7,307.67
4. Step 4: Simplify right side
   10,990.95x = 120,503,916.76
5. Step 5: Solve for x
   x = 120,503,916.76/10,990.95
6. Step 6: Final answer
   x = 10,963.92