Finding the Fourth Proportional to 72,062.54, 99,442.18 and 40,233.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,062.54 : 99,442.18 = 40,233.46 : x
2. Step 2: Convert to fraction form
   72,062.54/99,442.18 = 40,233.46/x
3. Step 3: Cross multiply
   72,062.54x = 99,442.18 × 40,233.46
4. Step 4: Simplify right side
   72,062.54x = 4,000,902,971.34
5. Step 5: Solve for x
   x = 4,000,902,971.34/72,062.54
6. Step 6: Final answer
   x = 55,519.87