Finding the Fourth Proportional to 52,929.91, 73,040.53 and 31,420.55

Step by Step Solution

1. Step 1: Write the proportion equation
   52,929.91 : 73,040.53 = 31,420.55 : x
2. Step 2: Convert to fraction form
   52,929.91/73,040.53 = 31,420.55/x
3. Step 3: Cross multiply
   52,929.91x = 73,040.53 × 31,420.55
4. Step 4: Simplify right side
   52,929.91x = 2,294,973,624.89
5. Step 5: Solve for x
   x = 2,294,973,624.89/52,929.91
6. Step 6: Final answer
   x = 43,358.73