Finding the Fourth Proportional to 113,353.17, 170,029.88 and 42,274.72

Step by Step Solution

1. Step 1: Write the proportion equation
   113,353.17 : 170,029.88 = 42,274.72 : x
2. Step 2: Convert to fraction form
   113,353.17/170,029.88 = 42,274.72/x
3. Step 3: Cross multiply
   113,353.17x = 170,029.88 × 42,274.72
4. Step 4: Simplify right side
   113,353.17x = 7,187,965,568.63
5. Step 5: Solve for x
   x = 7,187,965,568.63/113,353.17
6. Step 6: Final answer
   x = 63,412.13