Finding the Fourth Proportional to 22,665.76, 33,969.86 and 12,810.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665.76 : 33,969.86 = 12,810.58 : x
2. Step 2: Convert to fraction form
   22,665.76/33,969.86 = 12,810.58/x
3. Step 3: Cross multiply
   22,665.76x = 33,969.86 × 12,810.58
4. Step 4: Simplify right side
   22,665.76x = 435,173,609.12
5. Step 5: Solve for x
   x = 435,173,609.12/22,665.76
6. Step 6: Final answer
   x = 19,199.60