Finding the Fourth Proportional to 42,938.37, 64,337.52 and 21,849.41

Step by Step Solution

1. Step 1: Write the proportion equation
   42,938.37 : 64,337.52 = 21,849.41 : x
2. Step 2: Convert to fraction form
   42,938.37/64,337.52 = 21,849.41/x
3. Step 3: Cross multiply
   42,938.37x = 64,337.52 × 21,849.41
4. Step 4: Simplify right side
   42,938.37x = 1,405,737,095.64
5. Step 5: Solve for x
   x = 1,405,737,095.64/42,938.37
6. Step 6: Final answer
   x = 32,738.48