Finding the Fourth Proportional to 103,156.56, 154,709.82 and 75,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,156.56 : 154,709.82 = 75,403.50 : x
2. Step 2: Convert to fraction form
   103,156.56/154,709.82 = 75,403.50/x
3. Step 3: Cross multiply
   103,156.56x = 154,709.82 × 75,403.50
4. Step 4: Simplify right side
   103,156.56x = 11,665,661,912.37
5. Step 5: Solve for x
   x = 11,665,661,912.37/103,156.56
6. Step 6: Final answer
   x = 113,086.96