Finding the Fourth Proportional to 82,427.10, 113,747.67 and 54,131.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,427.10 : 113,747.67 = 54,131.10 : x
2. Step 2: Convert to fraction form
   82,427.10/113,747.67 = 54,131.10/x
3. Step 3: Cross multiply
   82,427.10x = 113,747.67 × 54,131.10
4. Step 4: Simplify right side
   82,427.10x = 6,157,286,499.54
5. Step 5: Solve for x
   x = 6,157,286,499.54/82,427.10
6. Step 6: Final answer
   x = 74,699.78