Finding the Fourth Proportional to 42,773,020.80, 64,163,302.38 and 12,067,868.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,773,020.80 : 64,163,302.38 = 12,067,868.40 : x
2. Step 2: Convert to fraction form
   42,773,020.80/64,163,302.38 = 12,067,868.40/x
3. Step 3: Cross multiply
   42,773,020.80x = 64,163,302.38 × 12,067,868.40
4. Step 4: Simplify right side
   42,773,020.80x = 774,314,289,231,246.88
5. Step 5: Solve for x
   x = 774,314,289,231,246.88/42,773,020.80
6. Step 6: Final answer
   x = 18,102,866.59