Finding the Fourth Proportional to 22,978,688.19, 31,710,654 and 12,665,452.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,978,688.19 : 31,710,654 = 12,665,452.29 : x
2. Step 2: Convert to fraction form
   22,978,688.19/31,710,654 = 12,665,452.29/x
3. Step 3: Cross multiply
   22,978,688.19x = 31,710,654 × 12,665,452.29
4. Step 4: Simplify right side
   22,978,688.19x = 401,629,775,321,697.62
5. Step 5: Solve for x
   x = 401,629,775,321,697.62/22,978,688.19
6. Step 6: Final answer
   x = 17,478,359.60