Finding the Fourth Proportional to 37,152, 51,270.66 and 20,385

Step by Step Solution

1. Step 1: Write the proportion equation
   37,152 : 51,270.66 = 20,385 : x
2. Step 2: Convert to fraction form
   37,152/51,270.66 = 20,385/x
3. Step 3: Cross multiply
   37,152x = 51,270.66 × 20,385
4. Step 4: Simplify right side
   37,152x = 1,045,152,404.10
5. Step 5: Solve for x
   x = 1,045,152,404.10/37,152
6. Step 6: Final answer
   x = 28,131.79