Finding the Fourth Proportional to 205,554.52, 308,266.17 and 65,280.34

Step by Step Solution

1. Step 1: Write the proportion equation
   205,554.52 : 308,266.17 = 65,280.34 : x
2. Step 2: Convert to fraction form
   205,554.52/308,266.17 = 65,280.34/x
3. Step 3: Cross multiply
   205,554.52x = 308,266.17 × 65,280.34
4. Step 4: Simplify right side
   205,554.52x = 20,123,720,388.10
5. Step 5: Solve for x
   x = 20,123,720,388.10/205,554.52
6. Step 6: Final answer
   x = 97,899.67