Finding the Fourth Proportional to 22,916,729.39, 31,617,338.72 and 12,992,547.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,916,729.39 : 31,617,338.72 = 12,992,547.42 : x
2. Step 2: Convert to fraction form
   22,916,729.39/31,617,338.72 = 12,992,547.42/x
3. Step 3: Cross multiply
   22,916,729.39x = 31,617,338.72 × 12,992,547.42
4. Step 4: Simplify right side
   22,916,729.39x = 410,789,772,548,839.38
5. Step 5: Solve for x
   x = 410,789,772,548,839.38/22,916,729.39
6. Step 6: Final answer
   x = 17,925,322.84