Finding the Fourth Proportional to 408,061.16, 571,876.10 and 408,061.16

Step by Step Solution

1. Step 1: Write the proportion equation
   408,061.16 : 571,876.10 = 408,061.16 : x
2. Step 2: Convert to fraction form
   408,061.16/571,876.10 = 408,061.16/x
3. Step 3: Cross multiply
   408,061.16x = 571,876.10 × 408,061.16
4. Step 4: Simplify right side
   408,061.16x = 233,360,424,742.28
5. Step 5: Solve for x
   x = 233,360,424,742.28/408,061.16
6. Step 6: Final answer
   x = 571,876.10