Finding the Fourth Proportional to 72,248.63, 99,723.17 and 42,039.81

Step by Step Solution

1. Step 1: Write the proportion equation
   72,248.63 : 99,723.17 = 42,039.81 : x
2. Step 2: Convert to fraction form
   72,248.63/99,723.17 = 42,039.81/x
3. Step 3: Cross multiply
   72,248.63x = 99,723.17 × 42,039.81
4. Step 4: Simplify right side
   72,248.63x = 4,192,342,410.58
5. Step 5: Solve for x
   x = 4,192,342,410.58/72,248.63
6. Step 6: Final answer
   x = 58,026.60