Finding the Fourth Proportional to 113,872.16, 170,911.89 and 60,608.86

Step by Step Solution

1. Step 1: Write the proportion equation
   113,872.16 : 170,911.89 = 60,608.86 : x
2. Step 2: Convert to fraction form
   113,872.16/170,911.89 = 60,608.86/x
3. Step 3: Cross multiply
   113,872.16x = 170,911.89 × 60,608.86
4. Step 4: Simplify right side
   113,872.16x = 10,358,774,813.35
5. Step 5: Solve for x
   x = 10,358,774,813.35/113,872.16
6. Step 6: Final answer
   x = 90,968.46