Finding the Fourth Proportional to 85,419.54, 117,876.69 and 47,179.89

Step by Step Solution

1. Step 1: Write the proportion equation
   85,419.54 : 117,876.69 = 47,179.89 : x
2. Step 2: Convert to fraction form
   85,419.54/117,876.69 = 47,179.89/x
3. Step 3: Cross multiply
   85,419.54x = 117,876.69 × 47,179.89
4. Step 4: Simplify right side
   85,419.54x = 5,561,409,267.76
5. Step 5: Solve for x
   x = 5,561,409,267.76/85,419.54
6. Step 6: Final answer
   x = 65,106.99