Finding the Fourth Proportional to 562,815,457.30, 776,685,404.72 and 311,936,046.37

Step by Step Solution

1. Step 1: Write the proportion equation
   562,815,457.30 : 776,685,404.72 = 311,936,046.37 : x
2. Step 2: Convert to fraction form
   562,815,457.30/776,685,404.72 = 311,936,046.37/x
3. Step 3: Cross multiply
   562,815,457.30x = 776,685,404.72 × 311,936,046.37
4. Step 4: Simplify right side
   562,815,457.30x = 242,276,174,421,640,160
5. Step 5: Solve for x
   x = 242,276,174,421,640,160/562,815,457.30
6. Step 6: Final answer
   x = 430,471,784.81