Finding the Fourth Proportional to 78,483.03, 108,307.94 and 42,673.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,483.03 : 108,307.94 = 42,673.28 : x
2. Step 2: Convert to fraction form
   78,483.03/108,307.94 = 42,673.28/x
3. Step 3: Cross multiply
   78,483.03x = 108,307.94 × 42,673.28
4. Step 4: Simplify right side
   78,483.03x = 4,621,854,904.17
5. Step 5: Solve for x
   x = 4,621,854,904.17/78,483.03
6. Step 6: Final answer
   x = 58,889.87