Finding the Fourth Proportional to 456,710.37, 685,131.18 and 141,191.88

Step by Step Solution

1. Step 1: Write the proportion equation
   456,710.37 : 685,131.18 = 141,191.88 : x
2. Step 2: Convert to fraction form
   456,710.37/685,131.18 = 141,191.88/x
3. Step 3: Cross multiply
   456,710.37x = 685,131.18 × 141,191.88
4. Step 4: Simplify right side
   456,710.37x = 96,734,959,350.82
5. Step 5: Solve for x
   x = 96,734,959,350.82/456,710.37
6. Step 6: Final answer
   x = 211,808.11