Finding the Fourth Proportional to 13,834.05, 19,088.52 and 7,865.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.05 : 19,088.52 = 7,865.37 : x
2. Step 2: Convert to fraction form
   13,834.05/19,088.52 = 7,865.37/x
3. Step 3: Cross multiply
   13,834.05x = 19,088.52 × 7,865.37
4. Step 4: Simplify right side
   13,834.05x = 150,138,272.55
5. Step 5: Solve for x
   x = 150,138,272.55/13,834.05
6. Step 6: Final answer
   x = 10,852.81