Finding the Fourth Proportional to 95,309.20, 131,532.72 and 55,030.40

Step by Step Solution

1. Step 1: Write the proportion equation
   95,309.20 : 131,532.72 = 55,030.40 : x
2. Step 2: Convert to fraction form
   95,309.20/131,532.72 = 55,030.40/x
3. Step 3: Cross multiply
   95,309.20x = 131,532.72 × 55,030.40
4. Step 4: Simplify right side
   95,309.20x = 7,238,298,194.69
5. Step 5: Solve for x
   x = 7,238,298,194.69/95,309.20
6. Step 6: Final answer
   x = 75,945.43