Finding the Fourth Proportional to 364,899.20, 547,425.69 and 137,196.28

Step by Step Solution

1. Step 1: Write the proportion equation
   364,899.20 : 547,425.69 = 137,196.28 : x
2. Step 2: Convert to fraction form
   364,899.20/547,425.69 = 137,196.28/x
3. Step 3: Cross multiply
   364,899.20x = 547,425.69 × 137,196.28
4. Step 4: Simplify right side
   364,899.20x = 75,104,766,361.38
5. Step 5: Solve for x
   x = 75,104,766,361.38/364,899.20
6. Step 6: Final answer
   x = 205,823.32