Finding the Fourth Proportional to 67,720.39, 93,455.12 and 39,039.52

Step by Step Solution

1. Step 1: Write the proportion equation
   67,720.39 : 93,455.12 = 39,039.52 : x
2. Step 2: Convert to fraction form
   67,720.39/93,455.12 = 39,039.52/x
3. Step 3: Cross multiply
   67,720.39x = 93,455.12 × 39,039.52
4. Step 4: Simplify right side
   67,720.39x = 3,648,443,065.53
5. Step 5: Solve for x
   x = 3,648,443,065.53/67,720.39
6. Step 6: Final answer
   x = 53,875.10