Finding the Fourth Proportional to 9,012.31, 13,518.42 and 2,438.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.31 : 13,518.42 = 2,438.47 : x
2. Step 2: Convert to fraction form
   9,012.31/13,518.42 = 2,438.47/x
3. Step 3: Cross multiply
   9,012.31x = 13,518.42 × 2,438.47
4. Step 4: Simplify right side
   9,012.31x = 32,964,261.62
5. Step 5: Solve for x
   x = 32,964,261.62/9,012.31
6. Step 6: Final answer
   x = 3,657.69