Finding the Fourth Proportional to 45,863.10, 68,685.30 and 45,863.10

Step by Step Solution

1. Step 1: Write the proportion equation
   45,863.10 : 68,685.30 = 45,863.10 : x
2. Step 2: Convert to fraction form
   45,863.10/68,685.30 = 45,863.10/x
3. Step 3: Cross multiply
   45,863.10x = 68,685.30 × 45,863.10
4. Step 4: Simplify right side
   45,863.10x = 3,150,120,782.43
5. Step 5: Solve for x
   x = 3,150,120,782.43/45,863.10
6. Step 6: Final answer
   x = 68,685.30