Finding the Fourth Proportional to 9,892.70, 13,651.94 and 5,416.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,892.70 : 13,651.94 = 5,416.50 : x
2. Step 2: Convert to fraction form
   9,892.70/13,651.94 = 5,416.50/x
3. Step 3: Cross multiply
   9,892.70x = 13,651.94 × 5,416.50
4. Step 4: Simplify right side
   9,892.70x = 73,945,733.01
5. Step 5: Solve for x
   x = 73,945,733.01/9,892.70
6. Step 6: Final answer
   x = 7,474.78