Finding the Fourth Proportional to 78,592.94, 108,459.39 and 42,784.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78,592.94 : 108,459.39 = 42,784.07 : x
2. Step 2: Convert to fraction form
   78,592.94/108,459.39 = 42,784.07/x
3. Step 3: Cross multiply
   78,592.94x = 108,459.39 × 42,784.07
4. Step 4: Simplify right side
   78,592.94x = 4,640,334,133.92
5. Step 5: Solve for x
   x = 4,640,334,133.92/78,592.94
6. Step 6: Final answer
   x = 59,042.63