Finding the Fourth Proportional to 13,752.53, 18,978.47 and 7,464.90

Step by Step Solution

1. Step 1: Write the proportion equation
   13,752.53 : 18,978.47 = 7,464.90 : x
2. Step 2: Convert to fraction form
   13,752.53/18,978.47 = 7,464.90/x
3. Step 3: Cross multiply
   13,752.53x = 18,978.47 × 7,464.90
4. Step 4: Simplify right side
   13,752.53x = 141,672,343.38
5. Step 5: Solve for x
   x = 141,672,343.38/13,752.53
6. Step 6: Final answer
   x = 10,301.55