Finding the Fourth Proportional to 82,608.72, 114,051.96 and 54,362.40

Step by Step Solution

1. Step 1: Write the proportion equation
   82,608.72 : 114,051.96 = 54,362.40 : x
2. Step 2: Convert to fraction form
   82,608.72/114,051.96 = 54,362.40/x
3. Step 3: Cross multiply
   82,608.72x = 114,051.96 × 54,362.40
4. Step 4: Simplify right side
   82,608.72x = 6,200,138,270.30
5. Step 5: Solve for x
   x = 6,200,138,270.30/82,608.72
6. Step 6: Final answer
   x = 75,054.28