Finding the Fourth Proportional to 42,705,965.40, 64,052,727.30 and 12,410,669.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,705,965.40 : 64,052,727.30 = 12,410,669.40 : x
2. Step 2: Convert to fraction form
   42,705,965.40/64,052,727.30 = 12,410,669.40/x
3. Step 3: Cross multiply
   42,705,965.40x = 64,052,727.30 × 12,410,669.40
4. Step 4: Simplify right side
   42,705,965.40x = 794,937,222,688,654.62
5. Step 5: Solve for x
   x = 794,937,222,688,654.62/42,705,965.40
6. Step 6: Final answer
   x = 18,614,196.29