Finding the Fourth Proportional to 2,123,641,131.95, 3,185,471,773.92 and 649,778,590.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123,641,131.95 : 3,185,471,773.92 = 649,778,590.10 : x
2. Step 2: Convert to fraction form
   2,123,641,131.95/3,185,471,773.92 = 649,778,590.10/x
3. Step 3: Cross multiply
   2,123,641,131.95x = 3,185,471,773.92 × 649,778,590.10
4. Step 4: Simplify right side
   2,123,641,131.95x = 2,069,851,358,071,451,136
5. Step 5: Solve for x
   x = 2,069,851,358,071,451,136/2,123,641,131.95
6. Step 6: Final answer
   x = 974,670,968.14