Finding the Fourth Proportional to 9,461.31, 13,056.63 and 5,212.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,461.31 : 13,056.63 = 5,212.23 : x
2. Step 2: Convert to fraction form
   9,461.31/13,056.63 = 5,212.23/x
3. Step 3: Cross multiply
   9,461.31x = 13,056.63 × 5,212.23
4. Step 4: Simplify right side
   9,461.31x = 68,054,158.58
5. Step 5: Solve for x
   x = 68,054,158.58/9,461.31
6. Step 6: Final answer
   x = 7,192.89