Finding the Fourth Proportional to 13,820.47, 19,072.70 and 7,852.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,820.47 : 19,072.70 = 7,852.03 : x
2. Step 2: Convert to fraction form
   13,820.47/19,072.70 = 7,852.03/x
3. Step 3: Cross multiply
   13,820.47x = 19,072.70 × 7,852.03
4. Step 4: Simplify right side
   13,820.47x = 149,759,412.58
5. Step 5: Solve for x
   x = 149,759,412.58/13,820.47
6. Step 6: Final answer
   x = 10,836.06