Finding the Fourth Proportional to 399,636,015.98, 599,495,139.21 and 150,850,828.98

Step by Step Solution

1. Step 1: Write the proportion equation
   399,636,015.98 : 599,495,139.21 = 150,850,828.98 : x
2. Step 2: Convert to fraction form
   399,636,015.98/599,495,139.21 = 150,850,828.98/x
3. Step 3: Cross multiply
   399,636,015.98x = 599,495,139.21 × 150,850,828.98
4. Step 4: Simplify right side
   399,636,015.98x = 90,434,338,719,309,008
5. Step 5: Solve for x
   x = 90,434,338,719,309,008/399,636,015.98
6. Step 6: Final answer
   x = 226,291,763.27