Finding the Fourth Proportional to 9,243.53, 12,756.11 and 5,051.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,243.53 : 12,756.11 = 5,051.78 : x
2. Step 2: Convert to fraction form
   9,243.53/12,756.11 = 5,051.78/x
3. Step 3: Cross multiply
   9,243.53x = 12,756.11 × 5,051.78
4. Step 4: Simplify right side
   9,243.53x = 64,441,061.38
5. Step 5: Solve for x
   x = 64,441,061.38/9,243.53
6. Step 6: Final answer
   x = 6,971.48