Finding the Fourth Proportional to 30,547.64, 42,152.06 and 17,115.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,547.64 : 42,152.06 = 17,115.82 : x
2. Step 2: Convert to fraction form
   30,547.64/42,152.06 = 17,115.82/x
3. Step 3: Cross multiply
   30,547.64x = 42,152.06 × 17,115.82
4. Step 4: Simplify right side
   30,547.64x = 721,467,071.59
5. Step 5: Solve for x
   x = 721,467,071.59/30,547.64
6. Step 6: Final answer
   x = 23,617.77