Finding the Fourth Proportional to 58,020.98, 80,054.61 and 34,145.78

Step by Step Solution

1. Step 1: Write the proportion equation
   58,020.98 : 80,054.61 = 34,145.78 : x
2. Step 2: Convert to fraction form
   58,020.98/80,054.61 = 34,145.78/x
3. Step 3: Cross multiply
   58,020.98x = 80,054.61 × 34,145.78
4. Step 4: Simplify right side
   58,020.98x = 2,733,527,101.05
5. Step 5: Solve for x
   x = 2,733,527,101.05/58,020.98
6. Step 6: Final answer
   x = 47,112.74