Finding the Fourth Proportional to 72,436.50, 99,962.73 and 42,242.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,436.50 : 99,962.73 = 42,242.76 : x
2. Step 2: Convert to fraction form
   72,436.50/99,962.73 = 42,242.76/x
3. Step 3: Cross multiply
   72,436.50x = 99,962.73 × 42,242.76
4. Step 4: Simplify right side
   72,436.50x = 4,222,701,612.33
5. Step 5: Solve for x
   x = 4,222,701,612.33/72,436.50
6. Step 6: Final answer
   x = 58,295.22