Finding the Fourth Proportional to 74,805, 103,223.52 and 52,192.61

Step by Step Solution

1. Step 1: Write the proportion equation
   74,805 : 103,223.52 = 52,192.61 : x
2. Step 2: Convert to fraction form
   74,805/103,223.52 = 52,192.61/x
3. Step 3: Cross multiply
   74,805x = 103,223.52 × 52,192.61
4. Step 4: Simplify right side
   74,805x = 5,387,504,406.07
5. Step 5: Solve for x
   x = 5,387,504,406.07/74,805
6. Step 6: Final answer
   x = 72,020.65