Finding the Fourth Proportional to 10,830,056.10, 16,245,084.15 and 10,515,128.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,830,056.10 : 16,245,084.15 = 10,515,128.10 : x
2. Step 2: Convert to fraction form
   10,830,056.10/16,245,084.15 = 10,515,128.10/x
3. Step 3: Cross multiply
   10,830,056.10x = 16,245,084.15 × 10,515,128.10
4. Step 4: Simplify right side
   10,830,056.10x = 170,819,140,832,529.62
5. Step 5: Solve for x
   x = 170,819,140,832,529.62/10,830,056.10
6. Step 6: Final answer
   x = 15,772,692.15