Finding the Fourth Proportional to 264,429.35, 364,914.40 and 143,570.72

Step by Step Solution

1. Step 1: Write the proportion equation
   264,429.35 : 364,914.40 = 143,570.72 : x
2. Step 2: Convert to fraction form
   264,429.35/364,914.40 = 143,570.72/x
3. Step 3: Cross multiply
   264,429.35x = 364,914.40 × 143,570.72
4. Step 4: Simplify right side
   264,429.35x = 52,391,023,146.37
5. Step 5: Solve for x
   x = 52,391,023,146.37/264,429.35
6. Step 6: Final answer
   x = 198,128.62