Finding the Fourth Proportional to 21,853,451.67, 30,156,972.82 and 12,063,685.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,853,451.67 : 30,156,972.82 = 12,063,685.60 : x
2. Step 2: Convert to fraction form
   21,853,451.67/30,156,972.82 = 12,063,685.60/x
3. Step 3: Cross multiply
   21,853,451.67x = 30,156,972.82 × 12,063,685.60
4. Step 4: Simplify right side
   21,853,451.67x = 363,804,238,748,225.38
5. Step 5: Solve for x
   x = 363,804,238,748,225.38/21,853,451.67
6. Step 6: Final answer
   x = 16,647,449.76