Finding the Fourth Proportional to 9,967.73, 13,755.60 and 5,719.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,967.73 : 13,755.60 = 5,719.47 : x
2. Step 2: Convert to fraction form
   9,967.73/13,755.60 = 5,719.47/x
3. Step 3: Cross multiply
   9,967.73x = 13,755.60 × 5,719.47
4. Step 4: Simplify right side
   9,967.73x = 78,674,741.53
5. Step 5: Solve for x
   x = 78,674,741.53/9,967.73
6. Step 6: Final answer
   x = 7,892.95