Finding the Fourth Proportional to 52,362, 72,259.02 and 31,140.81

Step by Step Solution

1. Step 1: Write the proportion equation
   52,362 : 72,259.02 = 31,140.81 : x
2. Step 2: Convert to fraction form
   52,362/72,259.02 = 31,140.81/x
3. Step 3: Cross multiply
   52,362x = 72,259.02 × 31,140.81
4. Step 4: Simplify right side
   52,362x = 2,250,204,412.61
5. Step 5: Solve for x
   x = 2,250,204,412.61/52,362
6. Step 6: Final answer
   x = 42,974.00