Finding the Fourth Proportional to 42,408,005.05, 63,612,007.58 and 42,408,005.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,408,005.05 : 63,612,007.58 = 42,408,005.05 : x
2. Step 2: Convert to fraction form
   42,408,005.05/63,612,007.58 = 42,408,005.05/x
3. Step 3: Cross multiply
   42,408,005.05x = 63,612,007.58 × 42,408,005.05
4. Step 4: Simplify right side
   42,408,005.05x = 2,697,658,338,481,238
5. Step 5: Solve for x
   x = 2,697,658,338,481,238/42,408,005.05
6. Step 6: Final answer
   x = 63,612,007.58