Finding the Fourth Proportional to 1,416,778,123.62, 1,955,780,743.89 and 915,231,450.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,416,778,123.62 : 1,955,780,743.89 = 915,231,450.18 : x
2. Step 2: Convert to fraction form
   1,416,778,123.62/1,955,780,743.89 = 915,231,450.18/x
3. Step 3: Cross multiply
   1,416,778,123.62x = 1,955,780,743.89 × 915,231,450.18
4. Step 4: Simplify right side
   1,416,778,123.62x = 1,789,992,046,464,563,968
5. Step 5: Solve for x
   x = 1,789,992,046,464,563,968/1,416,778,123.62
6. Step 6: Final answer
   x = 1,263,424,396.96