Finding the Fourth Proportional to 140,864.52, 211,365.12 and 61,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,864.52 : 211,365.12 = 61,968.50 : x
2. Step 2: Convert to fraction form
   140,864.52/211,365.12 = 61,968.50/x
3. Step 3: Cross multiply
   140,864.52x = 211,365.12 × 61,968.50
4. Step 4: Simplify right side
   140,864.52x = 13,097,978,381.89
5. Step 5: Solve for x
   x = 13,097,978,381.89/140,864.52
6. Step 6: Final answer
   x = 92,982.81