Finding the Fourth Proportional to 123,847.27, 170,980.08 and 81,528.82

Step by Step Solution

1. Step 1: Write the proportion equation
   123,847.27 : 170,980.08 = 81,528.82 : x
2. Step 2: Convert to fraction form
   123,847.27/170,980.08 = 81,528.82/x
3. Step 3: Cross multiply
   123,847.27x = 170,980.08 × 81,528.82
4. Step 4: Simplify right side
   123,847.27x = 13,939,804,165.91
5. Step 5: Solve for x
   x = 13,939,804,165.91/123,847.27
6. Step 6: Final answer
   x = 112,556.41