Finding the Fourth Proportional to 105,424.22, 145,574.08 and 75,301.94

Step by Step Solution

1. Step 1: Write the proportion equation
   105,424.22 : 145,574.08 = 75,301.94 : x
2. Step 2: Convert to fraction form
   105,424.22/145,574.08 = 75,301.94/x
3. Step 3: Cross multiply
   105,424.22x = 145,574.08 × 75,301.94
4. Step 4: Simplify right side
   105,424.22x = 10,962,010,637.72
5. Step 5: Solve for x
   x = 10,962,010,637.72/105,424.22
6. Step 6: Final answer
   x = 103,980.00