Finding the Fourth Proportional to 42,849.90, 64,299.16 and 16,556.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,849.90 : 64,299.16 = 16,556.50 : x
2. Step 2: Convert to fraction form
   42,849.90/64,299.16 = 16,556.50/x
3. Step 3: Cross multiply
   42,849.90x = 64,299.16 × 16,556.50
4. Step 4: Simplify right side
   42,849.90x = 1,064,569,042.54
5. Step 5: Solve for x
   x = 1,064,569,042.54/42,849.90
6. Step 6: Final answer
   x = 24,844.14