Finding the Fourth Proportional to 12,156.64, 16,776.34 and 7,440.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156.64 : 16,776.34 = 7,440.93 : x
2. Step 2: Convert to fraction form
   12,156.64/16,776.34 = 7,440.93/x
3. Step 3: Cross multiply
   12,156.64x = 16,776.34 × 7,440.93
4. Step 4: Simplify right side
   12,156.64x = 124,831,503.15
5. Step 5: Solve for x
   x = 124,831,503.15/12,156.64
6. Step 6: Final answer
   x = 10,268.58