Finding the Fourth Proportional to 21,870,677.14, 30,182,450.76 and 12,578,253.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,870,677.14 : 30,182,450.76 = 12,578,253.52 : x
2. Step 2: Convert to fraction form
   21,870,677.14/30,182,450.76 = 12,578,253.52/x
3. Step 3: Cross multiply
   21,870,677.14x = 30,182,450.76 × 12,578,253.52
4. Step 4: Simplify right side
   21,870,677.14x = 379,642,517,514,196.69
5. Step 5: Solve for x
   x = 379,642,517,514,196.69/21,870,677.14
6. Step 6: Final answer
   x = 17,358,516.84