Finding the Fourth Proportional to 82,720.56, 114,155.52 and 46,909.80

Step by Step Solution

1. Step 1: Write the proportion equation
   82,720.56 : 114,155.52 = 46,909.80 : x
2. Step 2: Convert to fraction form
   82,720.56/114,155.52 = 46,909.80/x
3. Step 3: Cross multiply
   82,720.56x = 114,155.52 × 46,909.80
4. Step 4: Simplify right side
   82,720.56x = 5,355,012,612.10
5. Step 5: Solve for x
   x = 5,355,012,612.10/82,720.56
6. Step 6: Final answer
   x = 64,736.17