Finding the Fourth Proportional to 12,953.52, 17,875.80 and 7,288.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,953.52 : 17,875.80 = 7,288.56 : x
2. Step 2: Convert to fraction form
   12,953.52/17,875.80 = 7,288.56/x
3. Step 3: Cross multiply
   12,953.52x = 17,875.80 × 7,288.56
4. Step 4: Simplify right side
   12,953.52x = 130,288,840.85
5. Step 5: Solve for x
   x = 130,288,840.85/12,953.52
6. Step 6: Final answer
   x = 10,058.18