Finding the Fourth Proportional to 78,771.42, 108,702.14 and 42,962.13

Step by Step Solution

1. Step 1: Write the proportion equation
   78,771.42 : 108,702.14 = 42,962.13 : x
2. Step 2: Convert to fraction form
   78,771.42/108,702.14 = 42,962.13/x
3. Step 3: Cross multiply
   78,771.42x = 108,702.14 × 42,962.13
4. Step 4: Simplify right side
   78,771.42x = 4,670,075,255.15
5. Step 5: Solve for x
   x = 4,670,075,255.15/78,771.42
6. Step 6: Final answer
   x = 59,286.42