Finding the Fourth Proportional to 265,196.73, 397,796.18 and 107,428.17

Step by Step Solution

1. Step 1: Write the proportion equation
   265,196.73 : 397,796.18 = 107,428.17 : x
2. Step 2: Convert to fraction form
   265,196.73/397,796.18 = 107,428.17/x
3. Step 3: Cross multiply
   265,196.73x = 397,796.18 × 107,428.17
4. Step 4: Simplify right side
   265,196.73x = 42,734,515,113.25
5. Step 5: Solve for x
   x = 42,734,515,113.25/265,196.73
6. Step 6: Final answer
   x = 161,142.69