Finding the Fourth Proportional to 37,868.42, 52,260.18 and 21,957.86

Step by Step Solution

1. Step 1: Write the proportion equation
   37,868.42 : 52,260.18 = 21,957.86 : x
2. Step 2: Convert to fraction form
   37,868.42/52,260.18 = 21,957.86/x
3. Step 3: Cross multiply
   37,868.42x = 52,260.18 × 21,957.86
4. Step 4: Simplify right side
   37,868.42x = 1,147,521,716.01
5. Step 5: Solve for x
   x = 1,147,521,716.01/37,868.42
6. Step 6: Final answer
   x = 30,302.87