Finding the Fourth Proportional to 21,955,300.74, 30,298,979.21 and 12,164,828.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,955,300.74 : 30,298,979.21 = 12,164,828.94 : x
2. Step 2: Convert to fraction form
   21,955,300.74/30,298,979.21 = 12,164,828.94/x
3. Step 3: Cross multiply
   21,955,300.74x = 30,298,979.21 × 12,164,828.94
4. Step 4: Simplify right side
   21,955,300.74x = 368,581,899,085,442.12
5. Step 5: Solve for x
   x = 368,581,899,085,442.12/21,955,300.74
6. Step 6: Final answer
   x = 16,787,831.94