Finding the Fourth Proportional to 76,504.30, 105,573.82 and 42,511.91

Step by Step Solution

1. Step 1: Write the proportion equation
   76,504.30 : 105,573.82 = 42,511.91 : x
2. Step 2: Convert to fraction form
   76,504.30/105,573.82 = 42,511.91/x
3. Step 3: Cross multiply
   76,504.30x = 105,573.82 × 42,511.91
4. Step 4: Simplify right side
   76,504.30x = 4,488,144,100.05
5. Step 5: Solve for x
   x = 4,488,144,100.05/76,504.30
6. Step 6: Final answer
   x = 58,665.25