Finding the Fourth Proportional to 42,031, 58,002.78 and 23,168.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,031 : 58,002.78 = 23,168.53 : x
2. Step 2: Convert to fraction form
   42,031/58,002.78 = 23,168.53/x
3. Step 3: Cross multiply
   42,031x = 58,002.78 × 23,168.53
4. Step 4: Simplify right side
   42,031x = 1,343,839,148.51
5. Step 5: Solve for x
   x = 1,343,839,148.51/42,031
6. Step 6: Final answer
   x = 31,972.57