Finding the Fourth Proportional to 72,269.32, 99,707.44 and 42,048.17

Step by Step Solution

1. Step 1: Write the proportion equation
   72,269.32 : 99,707.44 = 42,048.17 : x
2. Step 2: Convert to fraction form
   72,269.32/99,707.44 = 42,048.17/x
3. Step 3: Cross multiply
   72,269.32x = 99,707.44 × 42,048.17
4. Step 4: Simplify right side
   72,269.32x = 4,192,515,387.38
5. Step 5: Solve for x
   x = 4,192,515,387.38/72,269.32
6. Step 6: Final answer
   x = 58,012.38