Finding the Fourth Proportional to 42,967,448.19, 64,450,540.78 and 10,619,353.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,967,448.19 : 64,450,540.78 = 10,619,353.51 : x
2. Step 2: Convert to fraction form
   42,967,448.19/64,450,540.78 = 10,619,353.51/x
3. Step 3: Cross multiply
   42,967,448.19x = 64,450,540.78 × 10,619,353.51
4. Step 4: Simplify right side
   42,967,448.19x = 684,423,076,265,816.50
5. Step 5: Solve for x
   x = 684,423,076,265,816.50/42,967,448.19
6. Step 6: Final answer
   x = 15,928,874.18