Finding the Fourth Proportional to 81,111.13, 111,871.14 and 48,812.08

Step by Step Solution

1. Step 1: Write the proportion equation
   81,111.13 : 111,871.14 = 48,812.08 : x
2. Step 2: Convert to fraction form
   81,111.13/111,871.14 = 48,812.08/x
3. Step 3: Cross multiply
   81,111.13x = 111,871.14 × 48,812.08
4. Step 4: Simplify right side
   81,111.13x = 5,460,663,035.37
5. Step 5: Solve for x
   x = 5,460,663,035.37/81,111.13
6. Step 6: Final answer
   x = 67,323.23