Finding the Fourth Proportional to 89,204.76, 123,031.71 and 75,820.32

Step by Step Solution

1. Step 1: Write the proportion equation
   89,204.76 : 123,031.71 = 75,820.32 : x
2. Step 2: Convert to fraction form
   89,204.76/123,031.71 = 75,820.32/x
3. Step 3: Cross multiply
   89,204.76x = 123,031.71 × 75,820.32
4. Step 4: Simplify right side
   89,204.76x = 9,328,303,622.35
5. Step 5: Solve for x
   x = 9,328,303,622.35/89,204.76
6. Step 6: Final answer
   x = 104,571.81