Finding the Fourth Proportional to 9,410, 12,985.52 and 5,160.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410 : 12,985.52 = 5,160.98 : x
2. Step 2: Convert to fraction form
   9,410/12,985.52 = 5,160.98/x
3. Step 3: Cross multiply
   9,410x = 12,985.52 × 5,160.98
4. Step 4: Simplify right side
   9,410x = 67,018,009.01
5. Step 5: Solve for x
   x = 67,018,009.01/9,410
6. Step 6: Final answer
   x = 7,122.00