Finding the Fourth Proportional to 76,702.12, 105,846.06 and 42,711.82

Step by Step Solution

1. Step 1: Write the proportion equation
   76,702.12 : 105,846.06 = 42,711.82 : x
2. Step 2: Convert to fraction form
   76,702.12/105,846.06 = 42,711.82/x
3. Step 3: Cross multiply
   76,702.12x = 105,846.06 × 42,711.82
4. Step 4: Simplify right side
   76,702.12x = 4,520,877,862.43
5. Step 5: Solve for x
   x = 4,520,877,862.43/76,702.12
6. Step 6: Final answer
   x = 58,940.72