Finding the Fourth Proportional to 115,997.76, 174,065.76 and 42,131.52

Step by Step Solution

1. Step 1: Write the proportion equation
   115,997.76 : 174,065.76 = 42,131.52 : x
2. Step 2: Convert to fraction form
   115,997.76/174,065.76 = 42,131.52/x
3. Step 3: Cross multiply
   115,997.76x = 174,065.76 × 42,131.52
4. Step 4: Simplify right side
   115,997.76x = 7,333,655,048.76
5. Step 5: Solve for x
   x = 7,333,655,048.76/115,997.76
6. Step 6: Final answer
   x = 63,222.39