Finding the Fourth Proportional to 73,870.31, 101,929.16 and 42,039.74

Step by Step Solution

1. Step 1: Write the proportion equation
   73,870.31 : 101,929.16 = 42,039.74 : x
2. Step 2: Convert to fraction form
   73,870.31/101,929.16 = 42,039.74/x
3. Step 3: Cross multiply
   73,870.31x = 101,929.16 × 42,039.74
4. Step 4: Simplify right side
   73,870.31x = 4,285,074,664.97
5. Step 5: Solve for x
   x = 4,285,074,664.97/73,870.31
6. Step 6: Final answer
   x = 58,008.08