Finding the Fourth Proportional to 86,009.48, 128,951.83 and 43,341.14

Step by Step Solution

1. Step 1: Write the proportion equation
   86,009.48 : 128,951.83 = 43,341.14 : x
2. Step 2: Convert to fraction form
   86,009.48/128,951.83 = 43,341.14/x
3. Step 3: Cross multiply
   86,009.48x = 128,951.83 × 43,341.14
4. Step 4: Simplify right side
   86,009.48x = 5,588,919,693.84
5. Step 5: Solve for x
   x = 5,588,919,693.84/86,009.48
6. Step 6: Final answer
   x = 64,980.28