Finding the Fourth Proportional to 90,099.67, 135,018.28 and 43,297.87

Step by Step Solution

1. Step 1: Write the proportion equation
   90,099.67 : 135,018.28 = 43,297.87 : x
2. Step 2: Convert to fraction form
   90,099.67/135,018.28 = 43,297.87/x
3. Step 3: Cross multiply
   90,099.67x = 135,018.28 × 43,297.87
4. Step 4: Simplify right side
   90,099.67x = 5,846,003,151.73
5. Step 5: Solve for x
   x = 5,846,003,151.73/90,099.67
6. Step 6: Final answer
   x = 64,883.74