Finding the Fourth Proportional to 210,766.42, 290,724.69 and 147,080.98

Step by Step Solution

1. Step 1: Write the proportion equation
   210,766.42 : 290,724.69 = 147,080.98 : x
2. Step 2: Convert to fraction form
   210,766.42/290,724.69 = 147,080.98/x
3. Step 3: Cross multiply
   210,766.42x = 290,724.69 × 147,080.98
4. Step 4: Simplify right side
   210,766.42x = 42,760,072,315.40
5. Step 5: Solve for x
   x = 42,760,072,315.40/210,766.42
6. Step 6: Final answer
   x = 202,878.96