Finding the Fourth Proportional to 13,124.83, 18,112.27 and 7,156.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,124.83 : 18,112.27 = 7,156.51 : x
2. Step 2: Convert to fraction form
   13,124.83/18,112.27 = 7,156.51/x
3. Step 3: Cross multiply
   13,124.83x = 18,112.27 × 7,156.51
4. Step 4: Simplify right side
   13,124.83x = 129,620,550.82
5. Step 5: Solve for x
   x = 129,620,550.82/13,124.83
6. Step 6: Final answer
   x = 9,875.98