Finding the Fourth Proportional to 19,304,518,269.68, 28,956,242,123.23 and 5,139,605,547.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,304,518,269.68 : 28,956,242,123.23 = 5,139,605,547.98 : x
2. Step 2: Convert to fraction form
   19,304,518,269.68/28,956,242,123.23 = 5,139,605,547.98/x
3. Step 3: Cross multiply
   19,304,518,269.68x = 28,956,242,123.23 × 5,139,605,547.98
4. Step 4: Simplify right side
   19,304,518,269.68x = 148,823,662,665,301,590,016
5. Step 5: Solve for x
   x = 148,823,662,665,301,590,016/19,304,518,269.68
6. Step 6: Final answer
   x = 7,709,265,809.50