Finding the Fourth Proportional to 78,794.71, 108,736.55 and 42,984.71

Step by Step Solution

1. Step 1: Write the proportion equation
   78,794.71 : 108,736.55 = 42,984.71 : x
2. Step 2: Convert to fraction form
   78,794.71/108,736.55 = 42,984.71/x
3. Step 3: Cross multiply
   78,794.71x = 108,736.55 × 42,984.71
4. Step 4: Simplify right side
   78,794.71x = 4,674,009,125.07
5. Step 5: Solve for x
   x = 4,674,009,125.07/78,794.71
6. Step 6: Final answer
   x = 59,318.82