Finding the Fourth Proportional to 109,407.57, 164,139.02 and 30,521.73

Step by Step Solution

1. Step 1: Write the proportion equation
   109,407.57 : 164,139.02 = 30,521.73 : x
2. Step 2: Convert to fraction form
   109,407.57/164,139.02 = 30,521.73/x
3. Step 3: Cross multiply
   109,407.57x = 164,139.02 × 30,521.73
4. Step 4: Simplify right side
   109,407.57x = 5,009,806,850.90
5. Step 5: Solve for x
   x = 5,009,806,850.90/109,407.57
6. Step 6: Final answer
   x = 45,790.31