Finding the Fourth Proportional to 28,100.76, 38,773.98 and 18,159

Step by Step Solution

1. Step 1: Write the proportion equation
   28,100.76 : 38,773.98 = 18,159 : x
2. Step 2: Convert to fraction form
   28,100.76/38,773.98 = 18,159/x
3. Step 3: Cross multiply
   28,100.76x = 38,773.98 × 18,159
4. Step 4: Simplify right side
   28,100.76x = 704,096,702.82
5. Step 5: Solve for x
   x = 704,096,702.82/28,100.76
6. Step 6: Final answer
   x = 25,056.14