Finding the Fourth Proportional to 116,890.29, 175,355.55 and 42,018.21

Step by Step Solution

1. Step 1: Write the proportion equation
   116,890.29 : 175,355.55 = 42,018.21 : x
2. Step 2: Convert to fraction form
   116,890.29/175,355.55 = 42,018.21/x
3. Step 3: Cross multiply
   116,890.29x = 175,355.55 × 42,018.21
4. Step 4: Simplify right side
   116,890.29x = 7,368,126,324.57
5. Step 5: Solve for x
   x = 7,368,126,324.57/116,890.29
6. Step 6: Final answer
   x = 63,034.55