Finding the Fourth Proportional to 60,509,132, 90,764,487.72 and 20,119,616

Step by Step Solution

1. Step 1: Write the proportion equation
   60,509,132 : 90,764,487.72 = 20,119,616 : x
2. Step 2: Convert to fraction form
   60,509,132/90,764,487.72 = 20,119,616/x
3. Step 3: Cross multiply
   60,509,132x = 90,764,487.72 × 20,119,616
4. Step 4: Simplify right side
   60,509,132x = 1,826,146,639,363,115.50
5. Step 5: Solve for x
   x = 1,826,146,639,363,115.50/60,509,132
6. Step 6: Final answer
   x = 30,179,686.59