Finding the Fourth Proportional to 31,134,672.40, 46,661,494.43 and 12,669,093.29

Step by Step Solution

1. Step 1: Write the proportion equation
   31,134,672.40 : 46,661,494.43 = 12,669,093.29 : x
2. Step 2: Convert to fraction form
   31,134,672.40/46,661,494.43 = 12,669,093.29/x
3. Step 3: Cross multiply
   31,134,672.40x = 46,661,494.43 × 12,669,093.29
4. Step 4: Simplify right side
   31,134,672.40x = 591,158,825,921,139.88
5. Step 5: Solve for x
   x = 591,158,825,921,139.88/31,134,672.40
6. Step 6: Final answer
   x = 18,987,154.20