Finding the Fourth Proportional to 13,053.60, 18,014.01 and 7,085.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,053.60 : 18,014.01 = 7,085.27 : x
2. Step 2: Convert to fraction form
   13,053.60/18,014.01 = 7,085.27/x
3. Step 3: Cross multiply
   13,053.60x = 18,014.01 × 7,085.27
4. Step 4: Simplify right side
   13,053.60x = 127,634,034.56
5. Step 5: Solve for x
   x = 127,634,034.56/13,053.60
6. Step 6: Final answer
   x = 9,777.69