Finding the Fourth Proportional to 141,908.69, 212,863.88 and 42,069.80

Step by Step Solution

1. Step 1: Write the proportion equation
   141,908.69 : 212,863.88 = 42,069.80 : x
2. Step 2: Convert to fraction form
   141,908.69/212,863.88 = 42,069.80/x
3. Step 3: Cross multiply
   141,908.69x = 212,863.88 × 42,069.80
4. Step 4: Simplify right side
   141,908.69x = 8,955,141,496.16
5. Step 5: Solve for x
   x = 8,955,141,496.16/141,908.69
6. Step 6: Final answer
   x = 63,104.95