Finding the Fourth Proportional to 398,017.48, 597,105.01 and 113,710.45

Step by Step Solution

1. Step 1: Write the proportion equation
   398,017.48 : 597,105.01 = 113,710.45 : x
2. Step 2: Convert to fraction form
   398,017.48/597,105.01 = 113,710.45/x
3. Step 3: Cross multiply
   398,017.48x = 597,105.01 × 113,710.45
4. Step 4: Simplify right side
   398,017.48x = 67,897,076,114.55
5. Step 5: Solve for x
   x = 67,897,076,114.55/398,017.48
6. Step 6: Final answer
   x = 170,588.18