Finding the Fourth Proportional to 70,062.24, 105,119.64 and 42,002.28

Step by Step Solution

1. Step 1: Write the proportion equation
   70,062.24 : 105,119.64 = 42,002.28 : x
2. Step 2: Convert to fraction form
   70,062.24/105,119.64 = 42,002.28/x
3. Step 3: Cross multiply
   70,062.24x = 105,119.64 × 42,002.28
4. Step 4: Simplify right side
   70,062.24x = 4,415,264,552.78
5. Step 5: Solve for x
   x = 4,415,264,552.78/70,062.24
6. Step 6: Final answer
   x = 63,019.17