Finding the Fourth Proportional to 42,744.72, 64,112.12 and 11,582.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,744.72 : 64,112.12 = 11,582.32 : x
2. Step 2: Convert to fraction form
   42,744.72/64,112.12 = 11,582.32/x
3. Step 3: Cross multiply
   42,744.72x = 64,112.12 × 11,582.32
4. Step 4: Simplify right side
   42,744.72x = 742,567,089.72
5. Step 5: Solve for x
   x = 742,567,089.72/42,744.72
6. Step 6: Final answer
   x = 17,372.14