Finding the Fourth Proportional to 42,919,189.05, 64,378,783.71 and 35,315,400.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,919,189.05 : 64,378,783.71 = 35,315,400.18 : x
2. Step 2: Convert to fraction form
   42,919,189.05/64,378,783.71 = 35,315,400.18/x
3. Step 3: Cross multiply
   42,919,189.05x = 64,378,783.71 × 35,315,400.18
4. Step 4: Simplify right side
   42,919,189.05x = 2,273,562,509,820,315
5. Step 5: Solve for x
   x = 2,273,562,509,820,315/42,919,189.05
6. Step 6: Final answer
   x = 52,973,100.38