Finding the Fourth Proportional to 42,922.04, 64,397.03 and 20,737.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,922.04 : 64,397.03 = 20,737.89 : x
2. Step 2: Convert to fraction form
   42,922.04/64,397.03 = 20,737.89/x
3. Step 3: Cross multiply
   42,922.04x = 64,397.03 × 20,737.89
4. Step 4: Simplify right side
   42,922.04x = 1,335,458,420.78
5. Step 5: Solve for x
   x = 1,335,458,420.78/42,922.04
6. Step 6: Final answer
   x = 31,113.59