Finding the Fourth Proportional to 70,510.26, 105,624.39 and 42,414.78

Step by Step Solution

1. Step 1: Write the proportion equation
   70,510.26 : 105,624.39 = 42,414.78 : x
2. Step 2: Convert to fraction form
   70,510.26/105,624.39 = 42,414.78/x
3. Step 3: Cross multiply
   70,510.26x = 105,624.39 × 42,414.78
4. Step 4: Simplify right side
   70,510.26x = 4,480,035,264.48
5. Step 5: Solve for x
   x = 4,480,035,264.48/70,510.26
6. Step 6: Final answer
   x = 63,537.35