Finding the Fourth Proportional to 42,017.52, 57,985.36 and 23,155.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017.52 : 57,985.36 = 23,155.84 : x
2. Step 2: Convert to fraction form
   42,017.52/57,985.36 = 23,155.84/x
3. Step 3: Cross multiply
   42,017.52x = 57,985.36 × 23,155.84
4. Step 4: Simplify right side
   42,017.52x = 1,342,699,718.50
5. Step 5: Solve for x
   x = 1,342,699,718.50/42,017.52
6. Step 6: Final answer
   x = 31,955.71