Finding the Fourth Proportional to 13,835.43, 19,092.15 and 7,785.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,835.43 : 19,092.15 = 7,785.81 : x
2. Step 2: Convert to fraction form
   13,835.43/19,092.15 = 7,785.81/x
3. Step 3: Cross multiply
   13,835.43x = 19,092.15 × 7,785.81
4. Step 4: Simplify right side
   13,835.43x = 148,647,852.39
5. Step 5: Solve for x
   x = 148,647,852.39/13,835.43
6. Step 6: Final answer
   x = 10,744.00