Finding the Fourth Proportional to 12,756.34, 19,132.37 and 9,047.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,756.34 : 19,132.37 = 9,047.31 : x
2. Step 2: Convert to fraction form
   12,756.34/19,132.37 = 9,047.31/x
3. Step 3: Cross multiply
   12,756.34x = 19,132.37 × 9,047.31
4. Step 4: Simplify right side
   12,756.34x = 173,096,482.42
5. Step 5: Solve for x
   x = 173,096,482.42/12,756.34
6. Step 6: Final answer
   x = 13,569.45