Finding the Fourth Proportional to 70,935.85, 106,216.05 and 42,818.32

Step by Step Solution

1. Step 1: Write the proportion equation
   70,935.85 : 106,216.05 = 42,818.32 : x
2. Step 2: Convert to fraction form
   70,935.85/106,216.05 = 42,818.32/x
3. Step 3: Cross multiply
   70,935.85x = 106,216.05 × 42,818.32
4. Step 4: Simplify right side
   70,935.85x = 4,547,992,818.04
5. Step 5: Solve for x
   x = 4,547,992,818.04/70,935.85
6. Step 6: Final answer
   x = 64,114.17