Finding the Fourth Proportional to 42,131.80, 58,145.70 and 23,275

Step by Step Solution

1. Step 1: Write the proportion equation
   42,131.80 : 58,145.70 = 23,275 : x
2. Step 2: Convert to fraction form
   42,131.80/58,145.70 = 23,275/x
3. Step 3: Cross multiply
   42,131.80x = 58,145.70 × 23,275
4. Step 4: Simplify right side
   42,131.80x = 1,353,341,167.50
5. Step 5: Solve for x
   x = 1,353,341,167.50/42,131.80
6. Step 6: Final answer
   x = 32,121.61