Finding the Fourth Proportional to 116,939.74, 175,409.20 and 42,059.76

Step by Step Solution

1. Step 1: Write the proportion equation
   116,939.74 : 175,409.20 = 42,059.76 : x
2. Step 2: Convert to fraction form
   116,939.74/175,409.20 = 42,059.76/x
3. Step 3: Cross multiply
   116,939.74x = 175,409.20 × 42,059.76
4. Step 4: Simplify right side
   116,939.74x = 7,377,668,853.79
5. Step 5: Solve for x
   x = 7,377,668,853.79/116,939.74
6. Step 6: Final answer
   x = 63,089.49