Finding the Fourth Proportional to 55,752.72, 76,938.78 and 30,259.08

Step by Step Solution

1. Step 1: Write the proportion equation
   55,752.72 : 76,938.78 = 30,259.08 : x
2. Step 2: Convert to fraction form
   55,752.72/76,938.78 = 30,259.08/x
3. Step 3: Cross multiply
   55,752.72x = 76,938.78 × 30,259.08
4. Step 4: Simplify right side
   55,752.72x = 2,328,096,699.12
5. Step 5: Solve for x
   x = 2,328,096,699.12/55,752.72
6. Step 6: Final answer
   x = 41,757.54