Finding the Fourth Proportional to 380,819.58, 525,527.72 and 208,747.10

Step by Step Solution

1. Step 1: Write the proportion equation
   380,819.58 : 525,527.72 = 208,747.10 : x
2. Step 2: Convert to fraction form
   380,819.58/525,527.72 = 208,747.10/x
3. Step 3: Cross multiply
   380,819.58x = 525,527.72 × 208,747.10
4. Step 4: Simplify right side
   380,819.58x = 109,702,387,519.61
5. Step 5: Solve for x
   x = 109,702,387,519.61/380,819.58
6. Step 6: Final answer
   x = 288,069.19