Finding the Fourth Proportional to 12,848.45, 17,730.56 and 7,543.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,848.45 : 17,730.56 = 7,543.76 : x
2. Step 2: Convert to fraction form
   12,848.45/17,730.56 = 7,543.76/x
3. Step 3: Cross multiply
   12,848.45x = 17,730.56 × 7,543.76
4. Step 4: Simplify right side
   12,848.45x = 133,755,019.51
5. Step 5: Solve for x
   x = 133,755,019.51/12,848.45
6. Step 6: Final answer
   x = 10,410.21