Finding the Fourth Proportional to 10,491.74, 14,478.55 and 5,776.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,491.74 : 14,478.55 = 5,776.01 : x
2. Step 2: Convert to fraction form
   10,491.74/14,478.55 = 5,776.01/x
3. Step 3: Cross multiply
   10,491.74x = 14,478.55 × 5,776.01
4. Step 4: Simplify right side
   10,491.74x = 83,628,271.34
5. Step 5: Solve for x
   x = 83,628,271.34/10,491.74
6. Step 6: Final answer
   x = 7,970.87