Finding the Fourth Proportional to 9,314.76, 13,967.82 and 5,420.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.76 : 13,967.82 = 5,420.28 : x
2. Step 2: Convert to fraction form
   9,314.76/13,967.82 = 5,420.28/x
3. Step 3: Cross multiply
   9,314.76x = 13,967.82 × 5,420.28
4. Step 4: Simplify right side
   9,314.76x = 75,709,495.39
5. Step 5: Solve for x
   x = 75,709,495.39/9,314.76
6. Step 6: Final answer
   x = 8,127.91