Finding the Fourth Proportional to 13,238,117,669.76, 18,268,451,411.50 and 7,216,490,233.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,238,117,669.76 : 18,268,451,411.50 = 7,216,490,233.96 : x
2. Step 2: Convert to fraction form
   13,238,117,669.76/18,268,451,411.50 = 7,216,490,233.96/x
3. Step 3: Cross multiply
   13,238,117,669.76x = 18,268,451,411.50 × 7,216,490,233.96
4. Step 4: Simplify right side
   13,238,117,669.76x = 131,834,101,200,662,528,000
5. Step 5: Solve for x
   x = 131,834,101,200,662,528,000/13,238,117,669.76
6. Step 6: Final answer
   x = 9,958,674,223.13