Finding the Fourth Proportional to 70,517.76, 105,635.61 and 42,422.34

Step by Step Solution

1. Step 1: Write the proportion equation
   70,517.76 : 105,635.61 = 42,422.34 : x
2. Step 2: Convert to fraction form
   70,517.76/105,635.61 = 42,422.34/x
3. Step 3: Cross multiply
   70,517.76x = 105,635.61 × 42,422.34
4. Step 4: Simplify right side
   70,517.76x = 4,481,309,763.53
5. Step 5: Solve for x
   x = 4,481,309,763.53/70,517.76
6. Step 6: Final answer
   x = 63,548.67