Finding the Fourth Proportional to 43,402.50, 65,103.69 and 28,503.67

Step by Step Solution

1. Step 1: Write the proportion equation
   43,402.50 : 65,103.69 = 28,503.67 : x
2. Step 2: Convert to fraction form
   43,402.50/65,103.69 = 28,503.67/x
3. Step 3: Cross multiply
   43,402.50x = 65,103.69 × 28,503.67
4. Step 4: Simplify right side
   43,402.50x = 1,855,694,144.43
5. Step 5: Solve for x
   x = 1,855,694,144.43/43,402.50
6. Step 6: Final answer
   x = 42,755.47