Finding the Fourth Proportional to 64,517.88, 96,667.59 and 39,505.69

Step by Step Solution

1. Step 1: Write the proportion equation
   64,517.88 : 96,667.59 = 39,505.69 : x
2. Step 2: Convert to fraction form
   64,517.88/96,667.59 = 39,505.69/x
3. Step 3: Cross multiply
   64,517.88x = 96,667.59 × 39,505.69
4. Step 4: Simplify right side
   64,517.88x = 3,818,920,112.57
5. Step 5: Solve for x
   x = 3,818,920,112.57/64,517.88
6. Step 6: Final answer
   x = 59,191.65