Finding the Fourth Proportional to 10,011.78, 14,995.78 and 5,072.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,011.78 : 14,995.78 = 5,072.94 : x
2. Step 2: Convert to fraction form
   10,011.78/14,995.78 = 5,072.94/x
3. Step 3: Cross multiply
   10,011.78x = 14,995.78 × 5,072.94
4. Step 4: Simplify right side
   10,011.78x = 76,072,692.19
5. Step 5: Solve for x
   x = 76,072,692.19/10,011.78
6. Step 6: Final answer
   x = 7,598.32