Finding the Fourth Proportional to 20,285,142.71, 30,416,330.72 and 8,763,419.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,285,142.71 : 30,416,330.72 = 8,763,419.82 : x
2. Step 2: Convert to fraction form
   20,285,142.71/30,416,330.72 = 8,763,419.82/x
3. Step 3: Cross multiply
   20,285,142.71x = 30,416,330.72 × 8,763,419.82
4. Step 4: Simplify right side
   20,285,142.71x = 266,551,075,439,505.78
5. Step 5: Solve for x
   x = 266,551,075,439,505.78/20,285,142.71
6. Step 6: Final answer
   x = 13,140,211.99