Finding the Fourth Proportional to 10,602.78, 14,630.73 and 5,886.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,602.78 : 14,630.73 = 5,886.18 : x
2. Step 2: Convert to fraction form
   10,602.78/14,630.73 = 5,886.18/x
3. Step 3: Cross multiply
   10,602.78x = 14,630.73 × 5,886.18
4. Step 4: Simplify right side
   10,602.78x = 86,119,110.31
5. Step 5: Solve for x
   x = 86,119,110.31/10,602.78
6. Step 6: Final answer
   x = 8,122.31