Finding the Fourth Proportional to 103,514.36, 142,748.34 and 65,723

Step by Step Solution

1. Step 1: Write the proportion equation
   103,514.36 : 142,748.34 = 65,723 : x
2. Step 2: Convert to fraction form
   103,514.36/142,748.34 = 65,723/x
3. Step 3: Cross multiply
   103,514.36x = 142,748.34 × 65,723
4. Step 4: Simplify right side
   103,514.36x = 9,381,849,149.82
5. Step 5: Solve for x
   x = 9,381,849,149.82/103,514.36
6. Step 6: Final answer
   x = 90,633.31