Finding the Fourth Proportional to 8,478,664,300.65, 12,719,377,945.86 and 2,503,394,483.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,478,664,300.65 : 12,719,377,945.86 = 2,503,394,483.88 : x
2. Step 2: Convert to fraction form
   8,478,664,300.65/12,719,377,945.86 = 2,503,394,483.88/x
3. Step 3: Cross multiply
   8,478,664,300.65x = 12,719,377,945.86 × 2,503,394,483.88
4. Step 4: Simplify right side
   8,478,664,300.65x = 31,841,620,588,050,853,888
5. Step 5: Solve for x
   x = 31,841,620,588,050,853,888/8,478,664,300.65
6. Step 6: Final answer
   x = 3,755,499,623.40