Finding the Fourth Proportional to 42,017.99, 57,984.53 and 23,155.11

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017.99 : 57,984.53 = 23,155.11 : x
2. Step 2: Convert to fraction form
   42,017.99/57,984.53 = 23,155.11/x
3. Step 3: Cross multiply
   42,017.99x = 57,984.53 × 23,155.11
4. Step 4: Simplify right side
   42,017.99x = 1,342,638,054.67
5. Step 5: Solve for x
   x = 1,342,638,054.67/42,017.99
6. Step 6: Final answer
   x = 31,953.89