Finding the Fourth Proportional to 83,080.12, 114,648.78 and 45,355

Step by Step Solution

1. Step 1: Write the proportion equation
   83,080.12 : 114,648.78 = 45,355 : x
2. Step 2: Convert to fraction form
   83,080.12/114,648.78 = 45,355/x
3. Step 3: Cross multiply
   83,080.12x = 114,648.78 × 45,355
4. Step 4: Simplify right side
   83,080.12x = 5,199,895,416.90
5. Step 5: Solve for x
   x = 5,199,895,416.90/83,080.12
6. Step 6: Final answer
   x = 62,588.93