Finding the Fourth Proportional to 64,262.70, 96,393.72 and 42,870.18

Step by Step Solution

1. Step 1: Write the proportion equation
   64,262.70 : 96,393.72 = 42,870.18 : x
2. Step 2: Convert to fraction form
   64,262.70/96,393.72 = 42,870.18/x
3. Step 3: Cross multiply
   64,262.70x = 96,393.72 × 42,870.18
4. Step 4: Simplify right side
   64,262.70x = 4,132,416,127.27
5. Step 5: Solve for x
   x = 4,132,416,127.27/64,262.70
6. Step 6: Final answer
   x = 64,305.05