Finding the Fourth Proportional to 12,330.83, 17,012.53 and 7,545.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,330.83 : 17,012.53 = 7,545.78 : x
2. Step 2: Convert to fraction form
   12,330.83/17,012.53 = 7,545.78/x
3. Step 3: Cross multiply
   12,330.83x = 17,012.53 × 7,545.78
4. Step 4: Simplify right side
   12,330.83x = 128,372,881.82
5. Step 5: Solve for x
   x = 128,372,881.82/12,330.83
6. Step 6: Final answer
   x = 10,410.72