Finding the Fourth Proportional to 37,971.72, 52,407 and 21,204.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,971.72 : 52,407 = 21,204.72 : x
2. Step 2: Convert to fraction form
   37,971.72/52,407 = 21,204.72/x
3. Step 3: Cross multiply
   37,971.72x = 52,407 × 21,204.72
4. Step 4: Simplify right side
   37,971.72x = 1,111,275,761.04
5. Step 5: Solve for x
   x = 1,111,275,761.04/37,971.72
6. Step 6: Final answer
   x = 29,265.88