Finding the Fourth Proportional to 58,640.94, 80,924.16 and 31,783.16

Step by Step Solution

1. Step 1: Write the proportion equation
   58,640.94 : 80,924.16 = 31,783.16 : x
2. Step 2: Convert to fraction form
   58,640.94/80,924.16 = 31,783.16/x
3. Step 3: Cross multiply
   58,640.94x = 80,924.16 × 31,783.16
4. Step 4: Simplify right side
   58,640.94x = 2,572,025,525.15
5. Step 5: Solve for x
   x = 2,572,025,525.15/58,640.94
6. Step 6: Final answer
   x = 43,860.58