Finding the Fourth Proportional to 12,953.86, 17,875.89 and 7,288.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,953.86 : 17,875.89 = 7,288.85 : x
2. Step 2: Convert to fraction form
   12,953.86/17,875.89 = 7,288.85/x
3. Step 3: Cross multiply
   12,953.86x = 17,875.89 × 7,288.85
4. Step 4: Simplify right side
   12,953.86x = 130,294,725.52
5. Step 5: Solve for x
   x = 130,294,725.52/12,953.86
6. Step 6: Final answer
   x = 10,058.37