Finding the Fourth Proportional to 42,967.16, 64,442.39 and 21,614.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,967.16 : 64,442.39 = 21,614.18 : x
2. Step 2: Convert to fraction form
   42,967.16/64,442.39 = 21,614.18/x
3. Step 3: Cross multiply
   42,967.16x = 64,442.39 × 21,614.18
4. Step 4: Simplify right side
   42,967.16x = 1,392,868,986.81
5. Step 5: Solve for x
   x = 1,392,868,986.81/42,967.16
6. Step 6: Final answer
   x = 32,417.06