Finding the Fourth Proportional to 39,320.79, 58,931.93 and 30,967.82

Step by Step Solution

1. Step 1: Write the proportion equation
   39,320.79 : 58,931.93 = 30,967.82 : x
2. Step 2: Convert to fraction form
   39,320.79/58,931.93 = 30,967.82/x
3. Step 3: Cross multiply
   39,320.79x = 58,931.93 × 30,967.82
4. Step 4: Simplify right side
   39,320.79x = 1,824,993,105.83
5. Step 5: Solve for x
   x = 1,824,993,105.83/39,320.79
6. Step 6: Final answer
   x = 46,412.94