Finding the Fourth Proportional to 12,611,606.80, 17,406,850.32 and 8,258,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611,606.80 : 17,406,850.32 = 8,258,164.72 : x
2. Step 2: Convert to fraction form
   12,611,606.80/17,406,850.32 = 8,258,164.72/x
3. Step 3: Cross multiply
   12,611,606.80x = 17,406,850.32 × 8,258,164.72
4. Step 4: Simplify right side
   12,611,606.80x = 143,748,637,198,944.72
5. Step 5: Solve for x
   x = 143,748,637,198,944.72/12,611,606.80
6. Step 6: Final answer
   x = 11,398,122.34