Finding the Fourth Proportional to 113,698.48, 156,965.41 and 68,386.57

Step by Step Solution

1. Step 1: Write the proportion equation
   113,698.48 : 156,965.41 = 68,386.57 : x
2. Step 2: Convert to fraction form
   113,698.48/156,965.41 = 68,386.57/x
3. Step 3: Cross multiply
   113,698.48x = 156,965.41 × 68,386.57
4. Step 4: Simplify right side
   113,698.48x = 10,734,325,998.54
5. Step 5: Solve for x
   x = 10,734,325,998.54/113,698.48
6. Step 6: Final answer
   x = 94,410.47