Finding the Fourth Proportional to 37,866.86, 52,256.28 and 21,960.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,866.86 : 52,256.28 = 21,960.56 : x
2. Step 2: Convert to fraction form
   37,866.86/52,256.28 = 21,960.56/x
3. Step 3: Cross multiply
   37,866.86x = 52,256.28 × 21,960.56
4. Step 4: Simplify right side
   37,866.86x = 1,147,577,172.32
5. Step 5: Solve for x
   x = 1,147,577,172.32/37,866.86
6. Step 6: Final answer
   x = 30,305.58