Finding the Fourth Proportional to 82,111.84, 113,315.60 and 48,112.20

Step by Step Solution

1. Step 1: Write the proportion equation
   82,111.84 : 113,315.60 = 48,112.20 : x
2. Step 2: Convert to fraction form
   82,111.84/113,315.60 = 48,112.20/x
3. Step 3: Cross multiply
   82,111.84x = 113,315.60 × 48,112.20
4. Step 4: Simplify right side
   82,111.84x = 5,451,862,810.32
5. Step 5: Solve for x
   x = 5,451,862,810.32/82,111.84
6. Step 6: Final answer
   x = 66,395.57