Finding the Fourth Proportional to 22,047,005.28, 30,427,383.60 and 12,258,420.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,047,005.28 : 30,427,383.60 = 12,258,420.96 : x
2. Step 2: Convert to fraction form
   22,047,005.28/30,427,383.60 = 12,258,420.96/x
3. Step 3: Cross multiply
   22,047,005.28x = 30,427,383.60 × 12,258,420.96
4. Step 4: Simplify right side
   22,047,005.28x = 372,991,676,880,200.31
5. Step 5: Solve for x
   x = 372,991,676,880,200.31/22,047,005.28
6. Step 6: Final answer
   x = 16,918,020.03