Finding the Fourth Proportional to 30,696,786.50, 42,361,305.55 and 16,945,455.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,696,786.50 : 42,361,305.55 = 16,945,455.38 : x
2. Step 2: Convert to fraction form
   30,696,786.50/42,361,305.55 = 16,945,455.38/x
3. Step 3: Cross multiply
   30,696,786.50x = 42,361,305.55 × 16,945,455.38
4. Step 4: Simplify right side
   30,696,786.50x = 717,831,612,781,901.12
5. Step 5: Solve for x
   x = 717,831,612,781,901.12/30,696,786.50
6. Step 6: Final answer
   x = 23,384,584.99