Finding the Fourth Proportional to 64,840.29, 97,103.69 and 53,664.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,840.29 : 97,103.69 = 53,664.72 : x
2. Step 2: Convert to fraction form
   64,840.29/97,103.69 = 53,664.72/x
3. Step 3: Cross multiply
   64,840.29x = 97,103.69 × 53,664.72
4. Step 4: Simplify right side
   64,840.29x = 5,211,042,334.82
5. Step 5: Solve for x
   x = 5,211,042,334.82/64,840.29
6. Step 6: Final answer
   x = 80,367.35