Finding the Fourth Proportional to 9,216,087,186.90, 12,718,259,040.18 and 5,404,833,057.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,216,087,186.90 : 12,718,259,040.18 = 5,404,833,057.99 : x
2. Step 2: Convert to fraction form
   9,216,087,186.90/12,718,259,040.18 = 5,404,833,057.99/x
3. Step 3: Cross multiply
   9,216,087,186.90x = 12,718,259,040.18 × 5,404,833,057.99
4. Step 4: Simplify right side
   9,216,087,186.90x = 68,740,066,900,445,028,352
5. Step 5: Solve for x
   x = 68,740,066,900,445,028,352/9,216,087,186.90
6. Step 6: Final answer
   x = 7,458,704,058.07