Finding the Fourth Proportional to 10,131.35, 13,965.94 and 7,889.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.35 : 13,965.94 = 7,889.27 : x
2. Step 2: Convert to fraction form
   10,131.35/13,965.94 = 7,889.27/x
3. Step 3: Cross multiply
   10,131.35x = 13,965.94 × 7,889.27
4. Step 4: Simplify right side
   10,131.35x = 110,181,071.46
5. Step 5: Solve for x
   x = 110,181,071.46/10,131.35
6. Step 6: Final answer
   x = 10,875.26