Finding the Fourth Proportional to 81,038.96, 111,839.40 and 45,235.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,038.96 : 111,839.40 = 45,235.96 : x
2. Step 2: Convert to fraction form
   81,038.96/111,839.40 = 45,235.96/x
3. Step 3: Cross multiply
   81,038.96x = 111,839.40 × 45,235.96
4. Step 4: Simplify right side
   81,038.96x = 5,059,162,624.82
5. Step 5: Solve for x
   x = 5,059,162,624.82/81,038.96
6. Step 6: Final answer
   x = 62,428.77