Finding the Fourth Proportional to 309,902, 464,800.38 and 141,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   309,902 : 464,800.38 = 141,382.72 : x
2. Step 2: Convert to fraction form
   309,902/464,800.38 = 141,382.72/x
3. Step 3: Cross multiply
   309,902x = 464,800.38 × 141,382.72
4. Step 4: Simplify right side
   309,902x = 65,714,741,981.43
5. Step 5: Solve for x
   x = 65,714,741,981.43/309,902
6. Step 6: Final answer
   x = 212,050.07