Finding the Fourth Proportional to 55,547.12, 83,328.59 and 20,484.05

Step by Step Solution

1. Step 1: Write the proportion equation
   55,547.12 : 83,328.59 = 20,484.05 : x
2. Step 2: Convert to fraction form
   55,547.12/83,328.59 = 20,484.05/x
3. Step 3: Cross multiply
   55,547.12x = 83,328.59 × 20,484.05
4. Step 4: Simplify right side
   55,547.12x = 1,706,907,003.99
5. Step 5: Solve for x
   x = 1,706,907,003.99/55,547.12
6. Step 6: Final answer
   x = 30,728.99