Finding the Fourth Proportional to 42,768, 64,181.16 and 15,066

Step by Step Solution

1. Step 1: Write the proportion equation
   42,768 : 64,181.16 = 15,066 : x
2. Step 2: Convert to fraction form
   42,768/64,181.16 = 15,066/x
3. Step 3: Cross multiply
   42,768x = 64,181.16 × 15,066
4. Step 4: Simplify right side
   42,768x = 966,953,356.56
5. Step 5: Solve for x
   x = 966,953,356.56/42,768
6. Step 6: Final answer
   x = 22,609.27