Finding the Fourth Proportional to 67,868.84, 93,663.43 and 39,189.71

Step by Step Solution

1. Step 1: Write the proportion equation
   67,868.84 : 93,663.43 = 39,189.71 : x
2. Step 2: Convert to fraction form
   67,868.84/93,663.43 = 39,189.71/x
3. Step 3: Cross multiply
   67,868.84x = 93,663.43 × 39,189.71
4. Step 4: Simplify right side
   67,868.84x = 3,670,642,659.31
5. Step 5: Solve for x
   x = 3,670,642,659.31/67,868.84
6. Step 6: Final answer
   x = 54,084.36