Finding the Fourth Proportional to 81,100.96, 111,930.60 and 45,293.02

Step by Step Solution

1. Step 1: Write the proportion equation
   81,100.96 : 111,930.60 = 45,293.02 : x
2. Step 2: Convert to fraction form
   81,100.96/111,930.60 = 45,293.02/x
3. Step 3: Cross multiply
   81,100.96x = 111,930.60 × 45,293.02
4. Step 4: Simplify right side
   81,100.96x = 5,069,674,904.41
5. Step 5: Solve for x
   x = 5,069,674,904.41/81,100.96
6. Step 6: Final answer
   x = 62,510.66