Finding the Fourth Proportional to 98,323.76, 135,820.35 and 77,081.69

Step by Step Solution

1. Step 1: Write the proportion equation
   98,323.76 : 135,820.35 = 77,081.69 : x
2. Step 2: Convert to fraction form
   98,323.76/135,820.35 = 77,081.69/x
3. Step 3: Cross multiply
   98,323.76x = 135,820.35 × 77,081.69
4. Step 4: Simplify right side
   98,323.76x = 10,469,262,114.39
5. Step 5: Solve for x
   x = 10,469,262,114.39/98,323.76
6. Step 6: Final answer
   x = 106,477.44