Finding the Fourth Proportional to 190,862.58, 286,308.89 and 50,621.21

Step by Step Solution

1. Step 1: Write the proportion equation
   190,862.58 : 286,308.89 = 50,621.21 : x
2. Step 2: Convert to fraction form
   190,862.58/286,308.89 = 50,621.21/x
3. Step 3: Cross multiply
   190,862.58x = 286,308.89 × 50,621.21
4. Step 4: Simplify right side
   190,862.58x = 14,493,300,760.91
5. Step 5: Solve for x
   x = 14,493,300,760.91/190,862.58
6. Step 6: Final answer
   x = 75,935.79