Finding the Fourth Proportional to 13,835.51, 19,093.01 and 7,867.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,835.51 : 19,093.01 = 7,867.55 : x
2. Step 2: Convert to fraction form
   13,835.51/19,093.01 = 7,867.55/x
3. Step 3: Cross multiply
   13,835.51x = 19,093.01 × 7,867.55
4. Step 4: Simplify right side
   13,835.51x = 150,215,076.02
5. Step 5: Solve for x
   x = 150,215,076.02/13,835.51
6. Step 6: Final answer
   x = 10,857.22