Finding the Fourth Proportional to 119,017.71, 164,216.43 and 107,990.37

Step by Step Solution

1. Step 1: Write the proportion equation
   119,017.71 : 164,216.43 = 107,990.37 : x
2. Step 2: Convert to fraction form
   119,017.71/164,216.43 = 107,990.37/x
3. Step 3: Cross multiply
   119,017.71x = 164,216.43 × 107,990.37
4. Step 4: Simplify right side
   119,017.71x = 17,733,793,035.78
5. Step 5: Solve for x
   x = 17,733,793,035.78/119,017.71
6. Step 6: Final answer
   x = 149,001.30