Finding the Fourth Proportional to 21,020,605.55, 29,008,395.59 and 11,727,622.71

Step by Step Solution

1. Step 1: Write the proportion equation
   21,020,605.55 : 29,008,395.59 = 11,727,622.71 : x
2. Step 2: Convert to fraction form
   21,020,605.55/29,008,395.59 = 11,727,622.71/x
3. Step 3: Cross multiply
   21,020,605.55x = 29,008,395.59 × 11,727,622.71
4. Step 4: Simplify right side
   21,020,605.55x = 340,199,518,834,196.62
5. Step 5: Solve for x
   x = 340,199,518,834,196.62/21,020,605.55
6. Step 6: Final answer
   x = 16,184,096.98