Finding the Fourth Proportional to 117,717.72, 176,687.55 and 42,910.17

Step by Step Solution

1. Step 1: Write the proportion equation
   117,717.72 : 176,687.55 = 42,910.17 : x
2. Step 2: Convert to fraction form
   117,717.72/176,687.55 = 42,910.17/x
3. Step 3: Cross multiply
   117,717.72x = 176,687.55 × 42,910.17
4. Step 4: Simplify right side
   117,717.72x = 7,581,692,807.38
5. Step 5: Solve for x
   x = 7,581,692,807.38/117,717.72
6. Step 6: Final answer
   x = 64,405.71