Finding the Fourth Proportional to 128,094.89, 192,259.52 and 64,958.59

Step by Step Solution

1. Step 1: Write the proportion equation
   128,094.89 : 192,259.52 = 64,958.59 : x
2. Step 2: Convert to fraction form
   128,094.89/192,259.52 = 64,958.59/x
3. Step 3: Cross multiply
   128,094.89x = 192,259.52 × 64,958.59
4. Step 4: Simplify right side
   128,094.89x = 12,488,906,527.84
5. Step 5: Solve for x
   x = 12,488,906,527.84/128,094.89
6. Step 6: Final answer
   x = 97,497.31