Finding the Fourth Proportional to 13,783.02, 19,019.76 and 7,816.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,783.02 : 19,019.76 = 7,816.14 : x
2. Step 2: Convert to fraction form
   13,783.02/19,019.76 = 7,816.14/x
3. Step 3: Cross multiply
   13,783.02x = 19,019.76 × 7,816.14
4. Step 4: Simplify right side
   13,783.02x = 148,661,106.93
5. Step 5: Solve for x
   x = 148,661,106.93/13,783.02
6. Step 6: Final answer
   x = 10,785.82