Finding the Fourth Proportional to 9,210.56, 12,710.64 and 5,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,210.56 : 12,710.64 = 5,018.72 : x
2. Step 2: Convert to fraction form
   9,210.56/12,710.64 = 5,018.72/x
3. Step 3: Cross multiply
   9,210.56x = 12,710.64 × 5,018.72
4. Step 4: Simplify right side
   9,210.56x = 63,791,143.18
5. Step 5: Solve for x
   x = 63,791,143.18/9,210.56
6. Step 6: Final answer
   x = 6,925.87