Finding the Fourth Proportional to 42,009.68, 57,973.56 and 23,146.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,009.68 : 57,973.56 = 23,146.76 : x
2. Step 2: Convert to fraction form
   42,009.68/57,973.56 = 23,146.76/x
3. Step 3: Cross multiply
   42,009.68x = 57,973.56 × 23,146.76
4. Step 4: Simplify right side
   42,009.68x = 1,341,900,079.67
5. Step 5: Solve for x
   x = 1,341,900,079.67/42,009.68
6. Step 6: Final answer
   x = 31,942.64