Finding the Fourth Proportional to 117,168.30, 175,716.12 and 42,278.73

Step by Step Solution

1. Step 1: Write the proportion equation
   117,168.30 : 175,716.12 = 42,278.73 : x
2. Step 2: Convert to fraction form
   117,168.30/175,716.12 = 42,278.73/x
3. Step 3: Cross multiply
   117,168.30x = 175,716.12 × 42,278.73
4. Step 4: Simplify right side
   117,168.30x = 7,429,054,394.13
5. Step 5: Solve for x
   x = 7,429,054,394.13/117,168.30
6. Step 6: Final answer
   x = 63,404.99