Finding the Fourth Proportional to 123,996.57, 186,018.79 and 52,918.17

Step by Step Solution

1. Step 1: Write the proportion equation
   123,996.57 : 186,018.79 = 52,918.17 : x
2. Step 2: Convert to fraction form
   123,996.57/186,018.79 = 52,918.17/x
3. Step 3: Cross multiply
   123,996.57x = 186,018.79 × 52,918.17
4. Step 4: Simplify right side
   123,996.57x = 9,843,773,022.32
5. Step 5: Solve for x
   x = 9,843,773,022.32/123,996.57
6. Step 6: Final answer
   x = 79,387.47