Finding the Fourth Proportional to 571,020, 856,198.00 and 216,061.40

Step by Step Solution

1. Step 1: Write the proportion equation
   571,020 : 856,198.00 = 216,061.40 : x
2. Step 2: Convert to fraction form
   571,020/856,198.00 = 216,061.40/x
3. Step 3: Cross multiply
   571,020x = 856,198.00 × 216,061.40
4. Step 4: Simplify right side
   571,020x = 184,991,333,195.90
5. Step 5: Solve for x
   x = 184,991,333,195.90/571,020
6. Step 6: Final answer
   x = 323,966.47