Finding the Fourth Proportional to 42,722.38, 64,122.72 and 21,677.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,722.38 : 64,122.72 = 21,677.34 : x
2. Step 2: Convert to fraction form
   42,722.38/64,122.72 = 21,677.34/x
3. Step 3: Cross multiply
   42,722.38x = 64,122.72 × 21,677.34
4. Step 4: Simplify right side
   42,722.38x = 1,390,010,003.16
5. Step 5: Solve for x
   x = 1,390,010,003.16/42,722.38
6. Step 6: Final answer
   x = 32,535.87