Finding the Fourth Proportional to 12,589,342,570.89, 17,374,816,191.42 and 7,165,196,981.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,589,342,570.89 : 17,374,816,191.42 = 7,165,196,981.96 : x
2. Step 2: Convert to fraction form
   12,589,342,570.89/17,374,816,191.42 = 7,165,196,981.96/x
3. Step 3: Cross multiply
   12,589,342,570.89x = 17,374,816,191.42 × 7,165,196,981.96
4. Step 4: Simplify right side
   12,589,342,570.89x = 124,493,980,536,785,436,672
5. Step 5: Solve for x
   x = 124,493,980,536,785,436,672/12,589,342,570.89
6. Step 6: Final answer
   x = 9,888,838,899.71