Finding the Fourth Proportional to 55,209, 76,188.72 and 30,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,209 : 76,188.72 = 30,058.50 : x
2. Step 2: Convert to fraction form
   55,209/76,188.72 = 30,058.50/x
3. Step 3: Cross multiply
   55,209x = 76,188.72 × 30,058.50
4. Step 4: Simplify right side
   55,209x = 2,290,118,640.12
5. Step 5: Solve for x
   x = 2,290,118,640.12/55,209
6. Step 6: Final answer
   x = 41,480.89