Finding the Fourth Proportional to 619,155,736.30, 854,409,128.42 and 336,899,285.56

Step by Step Solution

1. Step 1: Write the proportion equation
   619,155,736.30 : 854,409,128.42 = 336,899,285.56 : x
2. Step 2: Convert to fraction form
   619,155,736.30/854,409,128.42 = 336,899,285.56/x
3. Step 3: Cross multiply
   619,155,736.30x = 854,409,128.42 × 336,899,285.56
4. Step 4: Simplify right side
   619,155,736.30x = 287,849,824,941,091,808
5. Step 5: Solve for x
   x = 287,849,824,941,091,808/619,155,736.30
6. Step 6: Final answer
   x = 464,906,982.30