Finding the Fourth Proportional to 42,023.01, 57,991.77 and 23,160.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,023.01 : 57,991.77 = 23,160.15 : x
2. Step 2: Convert to fraction form
   42,023.01/57,991.77 = 23,160.15/x
3. Step 3: Cross multiply
   42,023.01x = 57,991.77 × 23,160.15
4. Step 4: Simplify right side
   42,023.01x = 1,343,098,091.97
5. Step 5: Solve for x
   x = 1,343,098,091.97/42,023.01
6. Step 6: Final answer
   x = 31,961.02