Finding the Fourth Proportional to 37,320.30, 51,499.67 and 20,553.30

Step by Step Solution

1. Step 1: Write the proportion equation
   37,320.30 : 51,499.67 = 20,553.30 : x
2. Step 2: Convert to fraction form
   37,320.30/51,499.67 = 20,553.30/x
3. Step 3: Cross multiply
   37,320.30x = 51,499.67 × 20,553.30
4. Step 4: Simplify right side
   37,320.30x = 1,058,488,064.64
5. Step 5: Solve for x
   x = 1,058,488,064.64/37,320.30
6. Step 6: Final answer
   x = 28,362.26