Finding the Fourth Proportional to 22,891,978.38, 31,590,922.94 and 12,579,365.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,891,978.38 : 31,590,922.94 = 12,579,365.78 : x
2. Step 2: Convert to fraction form
   22,891,978.38/31,590,922.94 = 12,579,365.78/x
3. Step 3: Cross multiply
   22,891,978.38x = 31,590,922.94 × 12,579,365.78
4. Step 4: Simplify right side
   22,891,978.38x = 397,393,774,887,667.50
5. Step 5: Solve for x
   x = 397,393,774,887,667.50/22,891,978.38
6. Step 6: Final answer
   x = 17,359,520.80