Finding the Fourth Proportional to 105,350.21, 145,422.83 and 69,054

Step by Step Solution

1. Step 1: Write the proportion equation
   105,350.21 : 145,422.83 = 69,054 : x
2. Step 2: Convert to fraction form
   105,350.21/145,422.83 = 69,054/x
3. Step 3: Cross multiply
   105,350.21x = 145,422.83 × 69,054
4. Step 4: Simplify right side
   105,350.21x = 10,042,028,102.82
5. Step 5: Solve for x
   x = 10,042,028,102.82/105,350.21
6. Step 6: Final answer
   x = 95,320.44