Finding the Fourth Proportional to 15,740.42, 21,719.52 and 9,026.34

Step by Step Solution

1. Step 1: Write the proportion equation
   15,740.42 : 21,719.52 = 9,026.34 : x
2. Step 2: Convert to fraction form
   15,740.42/21,719.52 = 9,026.34/x
3. Step 3: Cross multiply
   15,740.42x = 21,719.52 × 9,026.34
4. Step 4: Simplify right side
   15,740.42x = 196,047,772.16
5. Step 5: Solve for x
   x = 196,047,772.16/15,740.42
6. Step 6: Final answer
   x = 12,455.05