Finding the Fourth Proportional to 43,233.67, 59,685.02 and 30,688.39

Step by Step Solution

1. Step 1: Write the proportion equation
   43,233.67 : 59,685.02 = 30,688.39 : x
2. Step 2: Convert to fraction form
   43,233.67/59,685.02 = 30,688.39/x
3. Step 3: Cross multiply
   43,233.67x = 59,685.02 × 30,688.39
4. Step 4: Simplify right side
   43,233.67x = 1,831,637,170.92
5. Step 5: Solve for x
   x = 1,831,637,170.92/43,233.67
6. Step 6: Final answer
   x = 42,365.99