Finding the Fourth Proportional to 42,697.92, 64,049.94 and 16,402.65

Step by Step Solution

1. Step 1: Write the proportion equation
   42,697.92 : 64,049.94 = 16,402.65 : x
2. Step 2: Convert to fraction form
   42,697.92/64,049.94 = 16,402.65/x
3. Step 3: Cross multiply
   42,697.92x = 64,049.94 × 16,402.65
4. Step 4: Simplify right side
   42,697.92x = 1,050,588,748.34
5. Step 5: Solve for x
   x = 1,050,588,748.34/42,697.92
6. Step 6: Final answer
   x = 24,605.15