Finding the Fourth Proportional to 22,263.31, 33,384.59 and 12,906.00

Step by Step Solution

1. Step 1: Write the proportion equation
   22,263.31 : 33,384.59 = 12,906.00 : x
2. Step 2: Convert to fraction form
   22,263.31/33,384.59 = 12,906.00/x
3. Step 3: Cross multiply
   22,263.31x = 33,384.59 × 12,906.00
4. Step 4: Simplify right side
   22,263.31x = 430,861,579.20
5. Step 5: Solve for x
   x = 430,861,579.20/22,263.31
6. Step 6: Final answer
   x = 19,352.99