Finding the Fourth Proportional to 73,219.72, 101,043.30 and 39,685.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,219.72 : 101,043.30 = 39,685.72 : x
2. Step 2: Convert to fraction form
   73,219.72/101,043.30 = 39,685.72/x
3. Step 3: Cross multiply
   73,219.72x = 101,043.30 × 39,685.72
4. Step 4: Simplify right side
   73,219.72x = 4,009,976,111.68
5. Step 5: Solve for x
   x = 4,009,976,111.68/73,219.72
6. Step 6: Final answer
   x = 54,766.34