Finding the Fourth Proportional to 42,016.55, 57,985.65 and 23,153.68

Step by Step Solution

1. Step 1: Write the proportion equation
   42,016.55 : 57,985.65 = 23,153.68 : x
2. Step 2: Convert to fraction form
   42,016.55/57,985.65 = 23,153.68/x
3. Step 3: Cross multiply
   42,016.55x = 57,985.65 × 23,153.68
4. Step 4: Simplify right side
   42,016.55x = 1,342,581,039.73
5. Step 5: Solve for x
   x = 1,342,581,039.73/42,016.55
6. Step 6: Final answer
   x = 31,953.62