Finding the Fourth Proportional to 72,419.32, 99,833.94 and 50,843.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,419.32 : 99,833.94 = 50,843.38 : x
2. Step 2: Convert to fraction form
   72,419.32/99,833.94 = 50,843.38/x
3. Step 3: Cross multiply
   72,419.32x = 99,833.94 × 50,843.38
4. Step 4: Simplify right side
   72,419.32x = 5,075,894,948.32
5. Step 5: Solve for x
   x = 5,075,894,948.32/72,419.32
6. Step 6: Final answer
   x = 70,090.34