Finding the Fourth Proportional to 22,142,404.95, 30,529,371.60 and 18,208,413.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142,404.95 : 30,529,371.60 = 18,208,413.15 : x
2. Step 2: Convert to fraction form
   22,142,404.95/30,529,371.60 = 18,208,413.15/x
3. Step 3: Cross multiply
   22,142,404.95x = 30,529,371.60 × 18,208,413.15
4. Step 4: Simplify right side
   22,142,404.95x = 555,891,411,302,676.50
5. Step 5: Solve for x
   x = 555,891,411,302,676.50/22,142,404.95
6. Step 6: Final answer
   x = 25,105,286.10