Finding the Fourth Proportional to 42,088.32, 63,072.33 and 30,907.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,088.32 : 63,072.33 = 30,907.29 : x
2. Step 2: Convert to fraction form
   42,088.32/63,072.33 = 30,907.29/x
3. Step 3: Cross multiply
   42,088.32x = 63,072.33 × 30,907.29
4. Step 4: Simplify right side
   42,088.32x = 1,949,394,794.29
5. Step 5: Solve for x
   x = 1,949,394,794.29/42,088.32
6. Step 6: Final answer
   x = 46,316.76