Finding the Fourth Proportional to 307,796.69, 424,766.57 and 193,080.17

Step by Step Solution

1. Step 1: Write the proportion equation
   307,796.69 : 424,766.57 = 193,080.17 : x
2. Step 2: Convert to fraction form
   307,796.69/424,766.57 = 193,080.17/x
3. Step 3: Cross multiply
   307,796.69x = 424,766.57 × 193,080.17
4. Step 4: Simplify right side
   307,796.69x = 82,014,001,642.43
5. Step 5: Solve for x
   x = 82,014,001,642.43/307,796.69
6. Step 6: Final answer
   x = 266,455.11