Finding the Fourth Proportional to 72,964.71, 100,686.96 and 42,335.44

Step by Step Solution

1. Step 1: Write the proportion equation
   72,964.71 : 100,686.96 = 42,335.44 : x
2. Step 2: Convert to fraction form
   72,964.71/100,686.96 = 42,335.44/x
3. Step 3: Cross multiply
   72,964.71x = 100,686.96 × 42,335.44
4. Step 4: Simplify right side
   72,964.71x = 4,262,626,753.86
5. Step 5: Solve for x
   x = 4,262,626,753.86/72,964.71
6. Step 6: Final answer
   x = 58,420.39