Finding the Fourth Proportional to 10,019.07, 13,838.13 and 7,512.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,019.07 : 13,838.13 = 7,512.12 : x
2. Step 2: Convert to fraction form
   10,019.07/13,838.13 = 7,512.12/x
3. Step 3: Cross multiply
   10,019.07x = 13,838.13 × 7,512.12
4. Step 4: Simplify right side
   10,019.07x = 103,953,693.14
5. Step 5: Solve for x
   x = 103,953,693.14/10,019.07
6. Step 6: Final answer
   x = 10,375.58