Finding the Fourth Proportional to 21,956,498.48, 30,300,145.80 and 12,167,106.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,956,498.48 : 30,300,145.80 = 12,167,106.18 : x
2. Step 2: Convert to fraction form
   21,956,498.48/30,300,145.80 = 12,167,106.18/x
3. Step 3: Cross multiply
   21,956,498.48x = 30,300,145.80 × 12,167,106.18
4. Step 4: Simplify right side
   21,956,498.48x = 368,665,091,218,081.06
5. Step 5: Solve for x
   x = 368,665,091,218,081.06/21,956,498.48
6. Step 6: Final answer
   x = 16,790,705.11