Finding the Fourth Proportional to 113,945.86, 170,905.35 and 71,701.30

Step by Step Solution

1. Step 1: Write the proportion equation
   113,945.86 : 170,905.35 = 71,701.30 : x
2. Step 2: Convert to fraction form
   113,945.86/170,905.35 = 71,701.30/x
3. Step 3: Cross multiply
   113,945.86x = 170,905.35 × 71,701.30
4. Step 4: Simplify right side
   113,945.86x = 12,254,135,771.96
5. Step 5: Solve for x
   x = 12,254,135,771.96/113,945.86
6. Step 6: Final answer
   x = 107,543.49