Finding the Fourth Proportional to 139,957.50, 193,210.31 and 96,969.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,957.50 : 193,210.31 = 96,969.59 : x
2. Step 2: Convert to fraction form
   139,957.50/193,210.31 = 96,969.59/x
3. Step 3: Cross multiply
   139,957.50x = 193,210.31 × 96,969.59
4. Step 4: Simplify right side
   139,957.50x = 18,735,523,093.57
5. Step 5: Solve for x
   x = 18,735,523,093.57/139,957.50
6. Step 6: Final answer
   x = 133,865.80