Finding the Fourth Proportional to 12,875.32, 17,767.64 and 7,570.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,875.32 : 17,767.64 = 7,570.28 : x
2. Step 2: Convert to fraction form
   12,875.32/17,767.64 = 7,570.28/x
3. Step 3: Cross multiply
   12,875.32x = 17,767.64 × 7,570.28
4. Step 4: Simplify right side
   12,875.32x = 134,506,009.74
5. Step 5: Solve for x
   x = 134,506,009.74/12,875.32
6. Step 6: Final answer
   x = 10,446.81