Finding the Fourth Proportional to 378,436.21, 567,747.72 and 112,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   378,436.21 : 567,747.72 = 112,196.72 : x
2. Step 2: Convert to fraction form
   378,436.21/567,747.72 = 112,196.72/x
3. Step 3: Cross multiply
   378,436.21x = 567,747.72 × 112,196.72
4. Step 4: Simplify right side
   378,436.21x = 63,699,433,390.85
5. Step 5: Solve for x
   x = 63,699,433,390.85/378,436.21
6. Step 6: Final answer
   x = 168,322.78