Finding the Fourth Proportional to 9,278,403,849.72, 12,804,618,944.88 and 5,468,087,611.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,278,403,849.72 : 12,804,618,944.88 = 5,468,087,611.62 : x
2. Step 2: Convert to fraction form
   9,278,403,849.72/12,804,618,944.88 = 5,468,087,611.62/x
3. Step 3: Cross multiply
   9,278,403,849.72x = 12,804,618,944.88 × 5,468,087,611.62
4. Step 4: Simplify right side
   9,278,403,849.72x = 70,016,778,224,013,074,432
5. Step 5: Solve for x
   x = 70,016,778,224,013,074,432/9,278,403,849.72
6. Step 6: Final answer
   x = 7,546,209,386.66