Finding the Fourth Proportional to 214,085.45, 321,144.78 and 64,314.02

Step by Step Solution

1. Step 1: Write the proportion equation
   214,085.45 : 321,144.78 = 64,314.02 : x
2. Step 2: Convert to fraction form
   214,085.45/321,144.78 = 64,314.02/x
3. Step 3: Cross multiply
   214,085.45x = 321,144.78 × 64,314.02
4. Step 4: Simplify right side
   214,085.45x = 20,654,111,803.82
5. Step 5: Solve for x
   x = 20,654,111,803.82/214,085.45
6. Step 6: Final answer
   x = 96,476.02