Finding the Fourth Proportional to 21,612,378.72, 32,366,615.94 and 12,362,316.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,612,378.72 : 32,366,615.94 = 12,362,316.06 : x
2. Step 2: Convert to fraction form
   21,612,378.72/32,366,615.94 = 12,362,316.06/x
3. Step 3: Cross multiply
   21,612,378.72x = 32,366,615.94 × 12,362,316.06
4. Step 4: Simplify right side
   21,612,378.72x = 400,126,336,042,914
5. Step 5: Solve for x
   x = 400,126,336,042,914/21,612,378.72
6. Step 6: Final answer
   x = 18,513,757.38