Finding the Fourth Proportional to 13,557.04, 18,706.24 and 7,588.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,557.04 : 18,706.24 = 7,588.72 : x
2. Step 2: Convert to fraction form
   13,557.04/18,706.24 = 7,588.72/x
3. Step 3: Cross multiply
   13,557.04x = 18,706.24 × 7,588.72
4. Step 4: Simplify right side
   13,557.04x = 141,956,417.61
5. Step 5: Solve for x
   x = 141,956,417.61/13,557.04
6. Step 6: Final answer
   x = 10,471.05