Finding the Fourth Proportional to 30,931.00, 42,684.91 and 16,783.94

Step by Step Solution

1. Step 1: Write the proportion equation
   30,931.00 : 42,684.91 = 16,783.94 : x
2. Step 2: Convert to fraction form
   30,931.00/42,684.91 = 16,783.94/x
3. Step 3: Cross multiply
   30,931.00x = 42,684.91 × 16,783.94
4. Step 4: Simplify right side
   30,931.00x = 716,421,033.10
5. Step 5: Solve for x
   x = 716,421,033.10/30,931.00
6. Step 6: Final answer
   x = 23,161.91