Finding the Fourth Proportional to 412,607.31, 618,844.52 and 113,017.82

Step by Step Solution

1. Step 1: Write the proportion equation
   412,607.31 : 618,844.52 = 113,017.82 : x
2. Step 2: Convert to fraction form
   412,607.31/618,844.52 = 113,017.82/x
3. Step 3: Cross multiply
   412,607.31x = 618,844.52 × 113,017.82
4. Step 4: Simplify right side
   412,607.31x = 69,940,455,757.67
5. Step 5: Solve for x
   x = 69,940,455,757.67/412,607.31
6. Step 6: Final answer
   x = 169,508.52