Finding the Fourth Proportional to 75,636.72, 113,515.56 and 34,086.96

Step by Step Solution

1. Step 1: Write the proportion equation
   75,636.72 : 113,515.56 = 34,086.96 : x
2. Step 2: Convert to fraction form
   75,636.72/113,515.56 = 34,086.96/x
3. Step 3: Cross multiply
   75,636.72x = 113,515.56 × 34,086.96
4. Step 4: Simplify right side
   75,636.72x = 3,869,400,353.10
5. Step 5: Solve for x
   x = 3,869,400,353.10/75,636.72
6. Step 6: Final answer
   x = 51,157.70