Finding the Fourth Proportional to 22,899,199.50, 31,600,963.72 and 12,586,979.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,899,199.50 : 31,600,963.72 = 12,586,979.34 : x
2. Step 2: Convert to fraction form
   22,899,199.50/31,600,963.72 = 12,586,979.34/x
3. Step 3: Cross multiply
   22,899,199.50x = 31,600,963.72 × 12,586,979.34
4. Step 4: Simplify right side
   22,899,199.50x = 397,760,677,467,729.50
5. Step 5: Solve for x
   x = 397,760,677,467,729.50/22,899,199.50
6. Step 6: Final answer
   x = 17,370,069.09