Finding the Fourth Proportional to 69,061.40, 103,668.90 and 42,795.80

Step by Step Solution

1. Step 1: Write the proportion equation
   69,061.40 : 103,668.90 = 42,795.80 : x
2. Step 2: Convert to fraction form
   69,061.40/103,668.90 = 42,795.80/x
3. Step 3: Cross multiply
   69,061.40x = 103,668.90 × 42,795.80
4. Step 4: Simplify right side
   69,061.40x = 4,436,593,510.62
5. Step 5: Solve for x
   x = 4,436,593,510.62/69,061.40
6. Step 6: Final answer
   x = 64,241.29