Finding the Fourth Proportional to 22,969,979.60, 31,699,983.88 and 12,656,700

Step by Step Solution

1. Step 1: Write the proportion equation
   22,969,979.60 : 31,699,983.88 = 12,656,700 : x
2. Step 2: Convert to fraction form
   22,969,979.60/31,699,983.88 = 12,656,700/x
3. Step 3: Cross multiply
   22,969,979.60x = 31,699,983.88 × 12,656,700
4. Step 4: Simplify right side
   22,969,979.60x = 401,217,185,973,996
5. Step 5: Solve for x
   x = 401,217,185,973,996/22,969,979.60
6. Step 6: Final answer
   x = 17,467,024.04