Finding the Fourth Proportional to 248,983.58, 373,300.41 and 91,191.53

Step by Step Solution

1. Step 1: Write the proportion equation
   248,983.58 : 373,300.41 = 91,191.53 : x
2. Step 2: Convert to fraction form
   248,983.58/373,300.41 = 91,191.53/x
3. Step 3: Cross multiply
   248,983.58x = 373,300.41 × 91,191.53
4. Step 4: Simplify right side
   248,983.58x = 34,041,835,537.53
5. Step 5: Solve for x
   x = 34,041,835,537.53/248,983.58
6. Step 6: Final answer
   x = 136,723.21