Finding the Fourth Proportional to 404,213,116.05, 557,817,435.81 and 223,165,929.60

Step by Step Solution

1. Step 1: Write the proportion equation
   404,213,116.05 : 557,817,435.81 = 223,165,929.60 : x
2. Step 2: Convert to fraction form
   404,213,116.05/557,817,435.81 = 223,165,929.60/x
3. Step 3: Cross multiply
   404,213,116.05x = 557,817,435.81 × 223,165,929.60
4. Step 4: Simplify right side
   404,213,116.05x = 124,485,846,609,626,960
5. Step 5: Solve for x
   x = 124,485,846,609,626,960/404,213,116.05
6. Step 6: Final answer
   x = 307,970,824.47