Finding the Fourth Proportional to 113,769.72, 156,953.70 and 68,447.16

Step by Step Solution

1. Step 1: Write the proportion equation
   113,769.72 : 156,953.70 = 68,447.16 : x
2. Step 2: Convert to fraction form
   113,769.72/156,953.70 = 68,447.16/x
3. Step 3: Cross multiply
   113,769.72x = 156,953.70 × 68,447.16
4. Step 4: Simplify right side
   113,769.72x = 10,743,035,016.49
5. Step 5: Solve for x
   x = 10,743,035,016.49/113,769.72
6. Step 6: Final answer
   x = 94,427.89