Finding the Fourth Proportional to 113,983.38, 157,150.88 and 78,111.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,983.38 : 157,150.88 = 78,111.12 : x
2. Step 2: Convert to fraction form
   113,983.38/157,150.88 = 78,111.12/x
3. Step 3: Cross multiply
   113,983.38x = 157,150.88 × 78,111.12
4. Step 4: Simplify right side
   113,983.38x = 12,275,230,855.23
5. Step 5: Solve for x
   x = 12,275,230,855.23/113,983.38
6. Step 6: Final answer
   x = 107,693.16