Finding the Fourth Proportional to 10,492.18, 15,738.31 and 3,918.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,492.18 : 15,738.31 = 3,918.30 : x
2. Step 2: Convert to fraction form
   10,492.18/15,738.31 = 3,918.30/x
3. Step 3: Cross multiply
   10,492.18x = 15,738.31 × 3,918.30
4. Step 4: Simplify right side
   10,492.18x = 61,667,341.38
5. Step 5: Solve for x
   x = 61,667,341.38/10,492.18
6. Step 6: Final answer
   x = 5,877.46