Finding the Fourth Proportional to 83,890.48, 115,769.38 and 45,650.34

Step by Step Solution

1. Step 1: Write the proportion equation
   83,890.48 : 115,769.38 = 45,650.34 : x
2. Step 2: Convert to fraction form
   83,890.48/115,769.38 = 45,650.34/x
3. Step 3: Cross multiply
   83,890.48x = 115,769.38 × 45,650.34
4. Step 4: Simplify right side
   83,890.48x = 5,284,911,558.59
5. Step 5: Solve for x
   x = 5,284,911,558.59/83,890.48
6. Step 6: Final answer
   x = 62,997.75