Finding the Fourth Proportional to 42,011, 57,976.80 and 23,147.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,011 : 57,976.80 = 23,147.72 : x
2. Step 2: Convert to fraction form
   42,011/57,976.80 = 23,147.72/x
3. Step 3: Cross multiply
   42,011x = 57,976.80 × 23,147.72
4. Step 4: Simplify right side
   42,011x = 1,342,030,732.90
5. Step 5: Solve for x
   x = 1,342,030,732.90/42,011
6. Step 6: Final answer
   x = 31,944.75