Finding the Fourth Proportional to 483,499.34, 725,182.02 and 128,542.22

Step by Step Solution

1. Step 1: Write the proportion equation
   483,499.34 : 725,182.02 = 128,542.22 : x
2. Step 2: Convert to fraction form
   483,499.34/725,182.02 = 128,542.22/x
3. Step 3: Cross multiply
   483,499.34x = 725,182.02 × 128,542.22
4. Step 4: Simplify right side
   483,499.34x = 93,216,506,754.88
5. Step 5: Solve for x
   x = 93,216,506,754.88/483,499.34
6. Step 6: Final answer
   x = 192,795.52