Finding the Fourth Proportional to 404,755,889.58, 558,563,315.72 and 219,116,905.29

Step by Step Solution

1. Step 1: Write the proportion equation
   404,755,889.58 : 558,563,315.72 = 219,116,905.29 : x
2. Step 2: Convert to fraction form
   404,755,889.58/558,563,315.72 = 219,116,905.29/x
3. Step 3: Cross multiply
   404,755,889.58x = 558,563,315.72 × 219,116,905.29
4. Step 4: Simplify right side
   404,755,889.58x = 122,390,665,147,992,032
5. Step 5: Solve for x
   x = 122,390,665,147,992,032/404,755,889.58
6. Step 6: Final answer
   x = 302,381,431.13