Finding the Fourth Proportional to 70,405.68, 105,519.82 and 50,310.51

Step by Step Solution

1. Step 1: Write the proportion equation
   70,405.68 : 105,519.82 = 50,310.51 : x
2. Step 2: Convert to fraction form
   70,405.68/105,519.82 = 50,310.51/x
3. Step 3: Cross multiply
   70,405.68x = 105,519.82 × 50,310.51
4. Step 4: Simplify right side
   70,405.68x = 5,308,755,959.31
5. Step 5: Solve for x
   x = 5,308,755,959.31/70,405.68
6. Step 6: Final answer
   x = 75,402.38