Finding the Fourth Proportional to 43,251.09, 64,887.56 and 12,086.34

Step by Step Solution

1. Step 1: Write the proportion equation
   43,251.09 : 64,887.56 = 12,086.34 : x
2. Step 2: Convert to fraction form
   43,251.09/64,887.56 = 12,086.34/x
3. Step 3: Cross multiply
   43,251.09x = 64,887.56 × 12,086.34
4. Step 4: Simplify right side
   43,251.09x = 784,253,051.50
5. Step 5: Solve for x
   x = 784,253,051.50/43,251.09
6. Step 6: Final answer
   x = 18,132.56