Finding the Fourth Proportional to 3,670,085.98, 5,505,128.99 and 3,670,085.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,085.98 : 5,505,128.99 = 3,670,085.98 : x
2. Step 2: Convert to fraction form
   3,670,085.98/5,505,128.99 = 3,670,085.98/x
3. Step 3: Cross multiply
   3,670,085.98x = 5,505,128.99 × 3,670,085.98
4. Step 4: Simplify right side
   3,670,085.98x = 20,204,296,724,290.56
5. Step 5: Solve for x
   x = 20,204,296,724,290.56/3,670,085.98
6. Step 6: Final answer
   x = 5,505,128.99