Finding the Fourth Proportional to 70,224.18, 105,362.86 and 42,163.83

Step by Step Solution

1. Step 1: Write the proportion equation
   70,224.18 : 105,362.86 = 42,163.83 : x
2. Step 2: Convert to fraction form
   70,224.18/105,362.86 = 42,163.83/x
3. Step 3: Cross multiply
   70,224.18x = 105,362.86 × 42,163.83
4. Step 4: Simplify right side
   70,224.18x = 4,442,501,717.35
5. Step 5: Solve for x
   x = 4,442,501,717.35/70,224.18
6. Step 6: Final answer
   x = 63,261.71