Finding the Fourth Proportional to 13,839.42, 19,098.06 and 7,551.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,839.42 : 19,098.06 = 7,551.81 : x
2. Step 2: Convert to fraction form
   13,839.42/19,098.06 = 7,551.81/x
3. Step 3: Cross multiply
   13,839.42x = 19,098.06 × 7,551.81
4. Step 4: Simplify right side
   13,839.42x = 144,224,920.49
5. Step 5: Solve for x
   x = 144,224,920.49/13,839.42
6. Step 6: Final answer
   x = 10,421.31