Finding the Fourth Proportional to 89,721.65, 134,602.17 and 26,536.83

Step by Step Solution

1. Step 1: Write the proportion equation
   89,721.65 : 134,602.17 = 26,536.83 : x
2. Step 2: Convert to fraction form
   89,721.65/134,602.17 = 26,536.83/x
3. Step 3: Cross multiply
   89,721.65x = 134,602.17 × 26,536.83
4. Step 4: Simplify right side
   89,721.65x = 3,571,914,902.92
5. Step 5: Solve for x
   x = 3,571,914,902.92/89,721.65
6. Step 6: Final answer
   x = 39,811.07