Finding the Fourth Proportional to 13,919.94, 19,209.39 and 7,632.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,919.94 : 19,209.39 = 7,632.18 : x
2. Step 2: Convert to fraction form
   13,919.94/19,209.39 = 7,632.18/x
3. Step 3: Cross multiply
   13,919.94x = 19,209.39 × 7,632.18
4. Step 4: Simplify right side
   13,919.94x = 146,609,522.17
5. Step 5: Solve for x
   x = 146,609,522.17/13,919.94
6. Step 6: Final answer
   x = 10,532.34