Finding the Fourth Proportional to 81,528.06, 112,506.37 and 49,685.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,528.06 : 112,506.37 = 49,685.34 : x
2. Step 2: Convert to fraction form
   81,528.06/112,506.37 = 49,685.34/x
3. Step 3: Cross multiply
   81,528.06x = 112,506.37 × 49,685.34
4. Step 4: Simplify right side
   81,528.06x = 5,589,917,245.62
5. Step 5: Solve for x
   x = 5,589,917,245.62/81,528.06
6. Step 6: Final answer
   x = 68,564.34