Finding the Fourth Proportional to 78,838.08, 118,292.34 and 42,825.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,838.08 : 118,292.34 = 42,825.48 : x
2. Step 2: Convert to fraction form
   78,838.08/118,292.34 = 42,825.48/x
3. Step 3: Cross multiply
   78,838.08x = 118,292.34 × 42,825.48
4. Step 4: Simplify right side
   78,838.08x = 5,065,926,240.82
5. Step 5: Solve for x
   x = 5,065,926,240.82/78,838.08
6. Step 6: Final answer
   x = 64,257.35