Finding the Fourth Proportional to 81,103.77, 111,915.20 and 45,293.01

Step by Step Solution

1. Step 1: Write the proportion equation
   81,103.77 : 111,915.20 = 45,293.01 : x
2. Step 2: Convert to fraction form
   81,103.77/111,915.20 = 45,293.01/x
3. Step 3: Cross multiply
   81,103.77x = 111,915.20 × 45,293.01
4. Step 4: Simplify right side
   81,103.77x = 5,068,975,966.30
5. Step 5: Solve for x
   x = 5,068,975,966.30/81,103.77
6. Step 6: Final answer
   x = 62,499.88