Finding the Fourth Proportional to 113,638.10, 170,456.01 and 43,517.42

Step by Step Solution

1. Step 1: Write the proportion equation
   113,638.10 : 170,456.01 = 43,517.42 : x
2. Step 2: Convert to fraction form
   113,638.10/170,456.01 = 43,517.42/x
3. Step 3: Cross multiply
   113,638.10x = 170,456.01 × 43,517.42
4. Step 4: Simplify right side
   113,638.10x = 7,417,804,926.41
5. Step 5: Solve for x
   x = 7,417,804,926.41/113,638.10
6. Step 6: Final answer
   x = 65,275.69