Finding the Fourth Proportional to 16,156,081.80, 24,192,132.30 and 12,768,856.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,156,081.80 : 24,192,132.30 = 12,768,856.20 : x
2. Step 2: Convert to fraction form
   16,156,081.80/24,192,132.30 = 12,768,856.20/x
3. Step 3: Cross multiply
   16,156,081.80x = 24,192,132.30 × 12,768,856.20
4. Step 4: Simplify right side
   16,156,081.80x = 308,905,858,510,075.25
5. Step 5: Solve for x
   x = 308,905,858,510,075.25/16,156,081.80
6. Step 6: Final answer
   x = 19,120,097.46