Finding the Fourth Proportional to 106,399.56, 146,829.78 and 58,651.87

Step by Step Solution

1. Step 1: Write the proportion equation
   106,399.56 : 146,829.78 = 58,651.87 : x
2. Step 2: Convert to fraction form
   106,399.56/146,829.78 = 58,651.87/x
3. Step 3: Cross multiply
   106,399.56x = 146,829.78 × 58,651.87
4. Step 4: Simplify right side
   106,399.56x = 8,611,841,168.69
5. Step 5: Solve for x
   x = 8,611,841,168.69/106,399.56
6. Step 6: Final answer
   x = 80,938.70