Finding the Fourth Proportional to 403,105,819.72, 556,250,566.78 and 224,476,210.04

Step by Step Solution

1. Step 1: Write the proportion equation
   403,105,819.72 : 556,250,566.78 = 224,476,210.04 : x
2. Step 2: Convert to fraction form
   403,105,819.72/556,250,566.78 = 224,476,210.04/x
3. Step 3: Cross multiply
   403,105,819.72x = 556,250,566.78 × 224,476,210.04
4. Step 4: Simplify right side
   403,105,819.72x = 124,865,019,063,376,320
5. Step 5: Solve for x
   x = 124,865,019,063,376,320/403,105,819.72
6. Step 6: Final answer
   x = 309,757,420.89