Finding the Fourth Proportional to 10,415.78, 14,373.78 and 5,700.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,415.78 : 14,373.78 = 5,700.06 : x
2. Step 2: Convert to fraction form
   10,415.78/14,373.78 = 5,700.06/x
3. Step 3: Cross multiply
   10,415.78x = 14,373.78 × 5,700.06
4. Step 4: Simplify right side
   10,415.78x = 81,931,408.43
5. Step 5: Solve for x
   x = 81,931,408.43/10,415.78
6. Step 6: Final answer
   x = 7,866.08