Finding the Fourth Proportional to 13,093.71, 18,069.39 and 7,125.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,093.71 : 18,069.39 = 7,125.42 : x
2. Step 2: Convert to fraction form
   13,093.71/18,069.39 = 7,125.42/x
3. Step 3: Cross multiply
   13,093.71x = 18,069.39 × 7,125.42
4. Step 4: Simplify right side
   13,093.71x = 128,751,992.89
5. Step 5: Solve for x
   x = 128,751,992.89/13,093.71
6. Step 6: Final answer
   x = 9,833.12