Finding the Fourth Proportional to 13,825.56, 19,074.71 and 7,855.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,825.56 : 19,074.71 = 7,855.05 : x
2. Step 2: Convert to fraction form
   13,825.56/19,074.71 = 7,855.05/x
3. Step 3: Cross multiply
   13,825.56x = 19,074.71 × 7,855.05
4. Step 4: Simplify right side
   13,825.56x = 149,832,820.42
5. Step 5: Solve for x
   x = 149,832,820.42/13,825.56
6. Step 6: Final answer
   x = 10,837.38