Finding the Fourth Proportional to 405,910,127.16, 560,157,443.82 and 220,271,093.64

Step by Step Solution

1. Step 1: Write the proportion equation
   405,910,127.16 : 560,157,443.82 = 220,271,093.64 : x
2. Step 2: Convert to fraction form
   405,910,127.16/560,157,443.82 = 220,271,093.64/x
3. Step 3: Cross multiply
   405,910,127.16x = 560,157,443.82 × 220,271,093.64
4. Step 4: Simplify right side
   405,910,127.16x = 123,386,492,760,818,256
5. Step 5: Solve for x
   x = 123,386,492,760,818,256/405,910,127.16
6. Step 6: Final answer
   x = 303,974,906.03