Finding the Fourth Proportional to 9,927.21, 13,699.71 and 5,451.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,927.21 : 13,699.71 = 5,451.38 : x
2. Step 2: Convert to fraction form
   9,927.21/13,699.71 = 5,451.38/x
3. Step 3: Cross multiply
   9,927.21x = 13,699.71 × 5,451.38
4. Step 4: Simplify right side
   9,927.21x = 74,682,256.60
5. Step 5: Solve for x
   x = 74,682,256.60/9,927.21
6. Step 6: Final answer
   x = 7,522.99