Finding the Fourth Proportional to 21,870,140.70, 32,805,211.05 and 13,756,808.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,870,140.70 : 32,805,211.05 = 13,756,808.10 : x
2. Step 2: Convert to fraction form
   21,870,140.70/32,805,211.05 = 13,756,808.10/x
3. Step 3: Cross multiply
   21,870,140.70x = 32,805,211.05 × 13,756,808.10
4. Step 4: Simplify right side
   21,870,140.70x = 451,294,993,094,849.50
5. Step 5: Solve for x
   x = 451,294,993,094,849.50/21,870,140.70
6. Step 6: Final answer
   x = 20,635,212.15