Finding the Fourth Proportional to 55,307.05, 76,323.80 and 30,156.55

Step by Step Solution

1. Step 1: Write the proportion equation
   55,307.05 : 76,323.80 = 30,156.55 : x
2. Step 2: Convert to fraction form
   55,307.05/76,323.80 = 30,156.55/x
3. Step 3: Cross multiply
   55,307.05x = 76,323.80 × 30,156.55
4. Step 4: Simplify right side
   55,307.05x = 2,301,662,109.27
5. Step 5: Solve for x
   x = 2,301,662,109.27/55,307.05
6. Step 6: Final answer
   x = 41,616.07