Finding the Fourth Proportional to 37,659.72, 51,970.42 and 20,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,659.72 : 51,970.42 = 20,892.72 : x
2. Step 2: Convert to fraction form
   37,659.72/51,970.42 = 20,892.72/x
3. Step 3: Cross multiply
   37,659.72x = 51,970.42 × 20,892.72
4. Step 4: Simplify right side
   37,659.72x = 1,085,803,433.34
5. Step 5: Solve for x
   x = 1,085,803,433.34/37,659.72
6. Step 6: Final answer
   x = 28,831.96