Finding the Fourth Proportional to 116,087.72, 174,209.24 and 42,215.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,087.72 : 174,209.24 = 42,215.72 : x
2. Step 2: Convert to fraction form
   116,087.72/174,209.24 = 42,215.72/x
3. Step 3: Cross multiply
   116,087.72x = 174,209.24 × 42,215.72
4. Step 4: Simplify right side
   116,087.72x = 7,354,367,731.75
5. Step 5: Solve for x
   x = 7,354,367,731.75/116,087.72
6. Step 6: Final answer
   x = 63,351.82