Finding the Fourth Proportional to 91,609.56, 137,235.42 and 63,141.42

Step by Step Solution

1. Step 1: Write the proportion equation
   91,609.56 : 137,235.42 = 63,141.42 : x
2. Step 2: Convert to fraction form
   91,609.56/137,235.42 = 63,141.42/x
3. Step 3: Cross multiply
   91,609.56x = 137,235.42 × 63,141.42
4. Step 4: Simplify right side
   91,609.56x = 8,665,239,293.10
5. Step 5: Solve for x
   x = 8,665,239,293.10/91,609.56
6. Step 6: Final answer
   x = 94,588.81