Finding the Fourth Proportional to 406,010,870.12, 560,279,997.72 and 220,367,900.00

Step by Step Solution

1. Step 1: Write the proportion equation
   406,010,870.12 : 560,279,997.72 = 220,367,900.00 : x
2. Step 2: Convert to fraction form
   406,010,870.12/560,279,997.72 = 220,367,900.00/x
3. Step 3: Cross multiply
   406,010,870.12x = 560,279,997.72 × 220,367,900.00
4. Step 4: Simplify right side
   406,010,870.12x = 123,467,726,506,759,792
5. Step 5: Solve for x
   x = 123,467,726,506,759,792/406,010,870.12
6. Step 6: Final answer
   x = 304,099,558.89