Finding the Fourth Proportional to 83,499.56, 115,236.66 and 45,781

Step by Step Solution

1. Step 1: Write the proportion equation
   83,499.56 : 115,236.66 = 45,781 : x
2. Step 2: Convert to fraction form
   83,499.56/115,236.66 = 45,781/x
3. Step 3: Cross multiply
   83,499.56x = 115,236.66 × 45,781
4. Step 4: Simplify right side
   83,499.56x = 5,275,649,531.46
5. Step 5: Solve for x
   x = 5,275,649,531.46/83,499.56
6. Step 6: Final answer
   x = 63,181.76