Finding the Fourth Proportional to 43,148,399.64, 64,722,910.50 and 10,800,861.72

Step by Step Solution

1. Step 1: Write the proportion equation
   43,148,399.64 : 64,722,910.50 = 10,800,861.72 : x
2. Step 2: Convert to fraction form
   43,148,399.64/64,722,910.50 = 10,800,861.72/x
3. Step 3: Cross multiply
   43,148,399.64x = 64,722,910.50 × 10,800,861.72
4. Step 4: Simplify right side
   43,148,399.64x = 699,063,206,426,436.12
5. Step 5: Solve for x
   x = 699,063,206,426,436.12/43,148,399.64
6. Step 6: Final answer
   x = 16,201,370.44