Finding the Fourth Proportional to 397,453.55, 596,166.41 and 113,145.67

Step by Step Solution

1. Step 1: Write the proportion equation
   397,453.55 : 596,166.41 = 113,145.67 : x
2. Step 2: Convert to fraction form
   397,453.55/596,166.41 = 113,145.67/x
3. Step 3: Cross multiply
   397,453.55x = 596,166.41 × 113,145.67
4. Step 4: Simplify right side
   397,453.55x = 67,453,648,494.72
5. Step 5: Solve for x
   x = 67,453,648,494.72/397,453.55
6. Step 6: Final answer
   x = 169,714.55