Finding the Fourth Proportional to 10,053.42, 15,055.29 and 8,109.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,053.42 : 15,055.29 = 8,109.42 : x
2. Step 2: Convert to fraction form
   10,053.42/15,055.29 = 8,109.42/x
3. Step 3: Cross multiply
   10,053.42x = 15,055.29 × 8,109.42
4. Step 4: Simplify right side
   10,053.42x = 122,089,669.83
5. Step 5: Solve for x
   x = 122,089,669.83/10,053.42
6. Step 6: Final answer
   x = 12,144.09