Finding the Fourth Proportional to 45,909.10, 68,734.05 and 45,909.10

Step by Step Solution

1. Step 1: Write the proportion equation
   45,909.10 : 68,734.05 = 45,909.10 : x
2. Step 2: Convert to fraction form
   45,909.10/68,734.05 = 45,909.10/x
3. Step 3: Cross multiply
   45,909.10x = 68,734.05 × 45,909.10
4. Step 4: Simplify right side
   45,909.10x = 3,155,518,374.86
5. Step 5: Solve for x
   x = 3,155,518,374.86/45,909.10
6. Step 6: Final answer
   x = 68,734.05