Finding the Fourth Proportional to 140,947.61, 211,484.27 and 65,005.31

Step by Step Solution

1. Step 1: Write the proportion equation
   140,947.61 : 211,484.27 = 65,005.31 : x
2. Step 2: Convert to fraction form
   140,947.61/211,484.27 = 65,005.31/x
3. Step 3: Cross multiply
   140,947.61x = 211,484.27 × 65,005.31
4. Step 4: Simplify right side
   140,947.61x = 13,747,600,531.47
5. Step 5: Solve for x
   x = 13,747,600,531.47/140,947.61
6. Step 6: Final answer
   x = 97,536.96