Finding the Fourth Proportional to 22,307.04, 30,783.77 and 12,875.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,307.04 : 30,783.77 = 12,875.60 : x
2. Step 2: Convert to fraction form
   22,307.04/30,783.77 = 12,875.60/x
3. Step 3: Cross multiply
   22,307.04x = 30,783.77 × 12,875.60
4. Step 4: Simplify right side
   22,307.04x = 396,359,290.72
5. Step 5: Solve for x
   x = 396,359,290.72/22,307.04
6. Step 6: Final answer
   x = 17,768.35