Finding the Fourth Proportional to 76,702.20, 105,848.82 and 43,168.20

Step by Step Solution

1. Step 1: Write the proportion equation
   76,702.20 : 105,848.82 = 43,168.20 : x
2. Step 2: Convert to fraction form
   76,702.20/105,848.82 = 43,168.20/x
3. Step 3: Cross multiply
   76,702.20x = 105,848.82 × 43,168.20
4. Step 4: Simplify right side
   76,702.20x = 4,569,303,031.52
5. Step 5: Solve for x
   x = 4,569,303,031.52/76,702.20
6. Step 6: Final answer
   x = 59,571.99