Finding the Fourth Proportional to 10,990.63, 16,492.43 and 4,069.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.63 : 16,492.43 = 4,069.99 : x
2. Step 2: Convert to fraction form
   10,990.63/16,492.43 = 4,069.99/x
3. Step 3: Cross multiply
   10,990.63x = 16,492.43 × 4,069.99
4. Step 4: Simplify right side
   10,990.63x = 67,124,004.83
5. Step 5: Solve for x
   x = 67,124,004.83/10,990.63
6. Step 6: Final answer
   x = 6,107.38