Finding the Fourth Proportional to 483,653.82, 725,479.86 and 128,667.84

Step by Step Solution

1. Step 1: Write the proportion equation
   483,653.82 : 725,479.86 = 128,667.84 : x
2. Step 2: Convert to fraction form
   483,653.82/725,479.86 = 128,667.84/x
3. Step 3: Cross multiply
   483,653.82x = 725,479.86 × 128,667.84
4. Step 4: Simplify right side
   483,653.82x = 93,345,926,549.70
5. Step 5: Solve for x
   x = 93,345,926,549.70/483,653.82
6. Step 6: Final answer
   x = 193,001.53