Finding the Fourth Proportional to 22,920,386.85, 31,629,473.96 and 12,607,109.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,920,386.85 : 31,629,473.96 = 12,607,109.91 : x
2. Step 2: Convert to fraction form
   22,920,386.85/31,629,473.96 = 12,607,109.91/x
3. Step 3: Cross multiply
   22,920,386.85x = 31,629,473.96 × 12,607,109.91
4. Step 4: Simplify right side
   22,920,386.85x = 398,756,254,546,167.38
5. Step 5: Solve for x
   x = 398,756,254,546,167.38/22,920,386.85
6. Step 6: Final answer
   x = 17,397,448.71