Finding the Fourth Proportional to 562,815,456.81, 776,685,404.03 and 311,936,045.87

Step by Step Solution

1. Step 1: Write the proportion equation
   562,815,456.81 : 776,685,404.03 = 311,936,045.87 : x
2. Step 2: Convert to fraction form
   562,815,456.81/776,685,404.03 = 311,936,045.87/x
3. Step 3: Cross multiply
   562,815,456.81x = 776,685,404.03 × 311,936,045.87
4. Step 4: Simplify right side
   562,815,456.81x = 242,276,173,818,061,568
5. Step 5: Solve for x
   x = 242,276,173,818,061,568/562,815,456.81
6. Step 6: Final answer
   x = 430,471,784.11