Finding the Fourth Proportional to 28,459.56, 42,702.72 and 17,927.16

Step by Step Solution

1. Step 1: Write the proportion equation
   28,459.56 : 42,702.72 = 17,927.16 : x
2. Step 2: Convert to fraction form
   28,459.56/42,702.72 = 17,927.16/x
3. Step 3: Cross multiply
   28,459.56x = 42,702.72 × 17,927.16
4. Step 4: Simplify right side
   28,459.56x = 765,538,493.88
5. Step 5: Solve for x
   x = 765,538,493.88/28,459.56
6. Step 6: Final answer
   x = 26,899.17