Finding the Fourth Proportional to 42,814.56, 64,208.56 and 15,106.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,814.56 : 64,208.56 = 15,106.08 : x
2. Step 2: Convert to fraction form
   42,814.56/64,208.56 = 15,106.08/x
3. Step 3: Cross multiply
   42,814.56x = 64,208.56 × 15,106.08
4. Step 4: Simplify right side
   42,814.56x = 969,939,644.04
5. Step 5: Solve for x
   x = 969,939,644.04/42,814.56
6. Step 6: Final answer
   x = 22,654.43