Finding the Fourth Proportional to 43,298.56, 64,951.98 and 12,133.72

Step by Step Solution

1. Step 1: Write the proportion equation
   43,298.56 : 64,951.98 = 12,133.72 : x
2. Step 2: Convert to fraction form
   43,298.56/64,951.98 = 12,133.72/x
3. Step 3: Cross multiply
   43,298.56x = 64,951.98 × 12,133.72
4. Step 4: Simplify right side
   43,298.56x = 788,109,138.77
5. Step 5: Solve for x
   x = 788,109,138.77/43,298.56
6. Step 6: Final answer
   x = 18,201.74