Finding the Fourth Proportional to 42,751.62, 64,124.39 and 13,166.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42,751.62 : 64,124.39 = 13,166.37 : x
2. Step 2: Convert to fraction form
   42,751.62/64,124.39 = 13,166.37/x
3. Step 3: Cross multiply
   42,751.62x = 64,124.39 × 13,166.37
4. Step 4: Simplify right side
   42,751.62x = 844,285,378.93
5. Step 5: Solve for x
   x = 844,285,378.93/42,751.62
6. Step 6: Final answer
   x = 19,748.62