Finding the Fourth Proportional to 123,536.34, 170,510.67 and 81,152.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123,536.34 : 170,510.67 = 81,152.28 : x
2. Step 2: Convert to fraction form
   123,536.34/170,510.67 = 81,152.28/x
3. Step 3: Cross multiply
   123,536.34x = 170,510.67 × 81,152.28
4. Step 4: Simplify right side
   123,536.34x = 13,837,329,634.83
5. Step 5: Solve for x
   x = 13,837,329,634.83/123,536.34
6. Step 6: Final answer
   x = 112,010.20