Finding the Fourth Proportional to 278,730,401.57, 384,658,067.57 and 159,676,003.33

Step by Step Solution

1. Step 1: Write the proportion equation
   278,730,401.57 : 384,658,067.57 = 159,676,003.33 : x
2. Step 2: Convert to fraction form
   278,730,401.57/384,658,067.57 = 159,676,003.33/x
3. Step 3: Cross multiply
   278,730,401.57x = 384,658,067.57 × 159,676,003.33
4. Step 4: Simplify right side
   278,730,401.57x = 61,420,662,878,218,688
5. Step 5: Solve for x
   x = 61,420,662,878,218,688/278,730,401.57
6. Step 6: Final answer
   x = 220,358,678.25