Finding the Fourth Proportional to 10,991.70, 16,483.91 and 5,066.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.70 : 16,483.91 = 5,066.15 : x
2. Step 2: Convert to fraction form
   10,991.70/16,483.91 = 5,066.15/x
3. Step 3: Cross multiply
   10,991.70x = 16,483.91 × 5,066.15
4. Step 4: Simplify right side
   10,991.70x = 83,509,852.90
5. Step 5: Solve for x
   x = 83,509,852.90/10,991.70
6. Step 6: Final answer
   x = 7,597.54