Finding the Fourth Proportional to 12,036,554.42, 18,057,514.35 and 5,643,399.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,036,554.42 : 18,057,514.35 = 5,643,399.38 : x
2. Step 2: Convert to fraction form
   12,036,554.42/18,057,514.35 = 5,643,399.38/x
3. Step 3: Cross multiply
   12,036,554.42x = 18,057,514.35 × 5,643,399.38
4. Step 4: Simplify right side
   12,036,554.42x = 101,905,765,287,131.11
5. Step 5: Solve for x
   x = 101,905,765,287,131.11/12,036,554.42
6. Step 6: Final answer
   x = 8,466,356.88