Finding the Fourth Proportional to 43,155,499.80, 64,737,579.38 and 12,450,839.64

Step by Step Solution

1. Step 1: Write the proportion equation
   43,155,499.80 : 64,737,579.38 = 12,450,839.64 : x
2. Step 2: Convert to fraction form
   43,155,499.80/64,737,579.38 = 12,450,839.64/x
3. Step 3: Cross multiply
   43,155,499.80x = 64,737,579.38 × 12,450,839.64
4. Step 4: Simplify right side
   43,155,499.80x = 806,037,219,542,150.75
5. Step 5: Solve for x
   x = 806,037,219,542,150.75/43,155,499.80
6. Step 6: Final answer
   x = 18,677,508.62