Finding the Fourth Proportional to 465,196.62, 697,935.01 and 145,335.57

Step by Step Solution

1. Step 1: Write the proportion equation
   465,196.62 : 697,935.01 = 145,335.57 : x
2. Step 2: Convert to fraction form
   465,196.62/697,935.01 = 145,335.57/x
3. Step 3: Cross multiply
   465,196.62x = 697,935.01 × 145,335.57
4. Step 4: Simplify right side
   465,196.62x = 101,434,782,501.31
5. Step 5: Solve for x
   x = 101,434,782,501.31/465,196.62
6. Step 6: Final answer
   x = 218,047.12