Finding the Fourth Proportional to 72,042, 99,429.48 and 42,234

Step by Step Solution

1. Step 1: Write the proportion equation
   72,042 : 99,429.48 = 42,234 : x
2. Step 2: Convert to fraction form
   72,042/99,429.48 = 42,234/x
3. Step 3: Cross multiply
   72,042x = 99,429.48 × 42,234
4. Step 4: Simplify right side
   72,042x = 4,199,304,658.32
5. Step 5: Solve for x
   x = 4,199,304,658.32/72,042
6. Step 6: Final answer
   x = 58,289.67