Finding the Fourth Proportional to 199,697.69, 299,588.63 and 64,751.25

Step by Step Solution

1. Step 1: Write the proportion equation
   199,697.69 : 299,588.63 = 64,751.25 : x
2. Step 2: Convert to fraction form
   199,697.69/299,588.63 = 64,751.25/x
3. Step 3: Cross multiply
   199,697.69x = 299,588.63 × 64,751.25
4. Step 4: Simplify right side
   199,697.69x = 19,398,737,073.89
5. Step 5: Solve for x
   x = 19,398,737,073.89/199,697.69
6. Step 6: Final answer
   x = 97,140.52