Finding the Fourth Proportional to 20,588,436.68, 30,872,099.94 and 10,878,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,588,436.68 : 30,872,099.94 = 10,878,271.50 : x
2. Step 2: Convert to fraction form
   20,588,436.68/30,872,099.94 = 10,878,271.50/x
3. Step 3: Cross multiply
   20,588,436.68x = 30,872,099.94 × 10,878,271.50
4. Step 4: Simplify right side
   20,588,436.68x = 335,835,084,823,775
5. Step 5: Solve for x
   x = 335,835,084,823,775/20,588,436.68
6. Step 6: Final answer
   x = 16,311,830.28