Finding the Fourth Proportional to 12,045.39, 18,088.76 and 7,392.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,045.39 : 18,088.76 = 7,392.72 : x
2. Step 2: Convert to fraction form
   12,045.39/18,088.76 = 7,392.72/x
3. Step 3: Cross multiply
   12,045.39x = 18,088.76 × 7,392.72
4. Step 4: Simplify right side
   12,045.39x = 133,725,070.41
5. Step 5: Solve for x
   x = 133,725,070.41/12,045.39
6. Step 6: Final answer
   x = 11,101.77