Finding the Fourth Proportional to 37,663.32, 51,973.62 and 20,667.18

Step by Step Solution

1. Step 1: Write the proportion equation
   37,663.32 : 51,973.62 = 20,667.18 : x
2. Step 2: Convert to fraction form
   37,663.32/51,973.62 = 20,667.18/x
3. Step 3: Cross multiply
   37,663.32x = 51,973.62 × 20,667.18
4. Step 4: Simplify right side
   37,663.32x = 1,074,148,159.79
5. Step 5: Solve for x
   x = 1,074,148,159.79/37,663.32
6. Step 6: Final answer
   x = 28,519.74