Finding the Fourth Proportional to 85,404.54, 117,858.24 and 47,678.76

Step by Step Solution

1. Step 1: Write the proportion equation
   85,404.54 : 117,858.24 = 47,678.76 : x
2. Step 2: Convert to fraction form
   85,404.54/117,858.24 = 47,678.76/x
3. Step 3: Cross multiply
   85,404.54x = 117,858.24 × 47,678.76
4. Step 4: Simplify right side
   85,404.54x = 5,619,334,738.98
5. Step 5: Solve for x
   x = 5,619,334,738.98/85,404.54
6. Step 6: Final answer
   x = 65,796.67