Finding the Fourth Proportional to 214,899.59, 322,407.71 and 65,144.76

Step by Step Solution

1. Step 1: Write the proportion equation
   214,899.59 : 322,407.71 = 65,144.76 : x
2. Step 2: Convert to fraction form
   214,899.59/322,407.71 = 65,144.76/x
3. Step 3: Cross multiply
   214,899.59x = 322,407.71 × 65,144.76
4. Step 4: Simplify right side
   214,899.59x = 21,003,172,564.38
5. Step 5: Solve for x
   x = 21,003,172,564.38/214,899.59
6. Step 6: Final answer
   x = 97,734.82