Finding the Fourth Proportional to 83,861.35, 115,730.78 and 45,623.05

Step by Step Solution

1. Step 1: Write the proportion equation
   83,861.35 : 115,730.78 = 45,623.05 : x
2. Step 2: Convert to fraction form
   83,861.35/115,730.78 = 45,623.05/x
3. Step 3: Cross multiply
   83,861.35x = 115,730.78 × 45,623.05
4. Step 4: Simplify right side
   83,861.35x = 5,279,991,162.48
5. Step 5: Solve for x
   x = 5,279,991,162.48/83,861.35
6. Step 6: Final answer
   x = 62,960.96