Finding the Fourth Proportional to 37,674.72, 51,990.72 and 20,907.84

Step by Step Solution

1. Step 1: Write the proportion equation
   37,674.72 : 51,990.72 = 20,907.84 : x
2. Step 2: Convert to fraction form
   37,674.72/51,990.72 = 20,907.84/x
3. Step 3: Cross multiply
   37,674.72x = 51,990.72 × 20,907.84
4. Step 4: Simplify right side
   37,674.72x = 1,087,013,655.24
5. Step 5: Solve for x
   x = 1,087,013,655.24/37,674.72
6. Step 6: Final answer
   x = 28,852.60