Finding the Fourth Proportional to 13,230,141,111.03, 18,257,363,850.15 and 7,208,696,358.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,230,141,111.03 : 18,257,363,850.15 = 7,208,696,358.23 : x
2. Step 2: Convert to fraction form
   13,230,141,111.03/18,257,363,850.15 = 7,208,696,358.23/x
3. Step 3: Cross multiply
   13,230,141,111.03x = 18,257,363,850.15 × 7,208,696,358.23
4. Step 4: Simplify right side
   13,230,141,111.03x = 131,611,792,297,365,094,400
5. Step 5: Solve for x
   x = 131,611,792,297,365,094,400/13,230,141,111.03
6. Step 6: Final answer
   x = 9,947,875,173.28