Finding the Fourth Proportional to 58,610.54, 80,817.42 and 42,445.88

Step by Step Solution

1. Step 1: Write the proportion equation
   58,610.54 : 80,817.42 = 42,445.88 : x
2. Step 2: Convert to fraction form
   58,610.54/80,817.42 = 42,445.88/x
3. Step 3: Cross multiply
   58,610.54x = 80,817.42 × 42,445.88
4. Step 4: Simplify right side
   58,610.54x = 3,430,366,511.23
5. Step 5: Solve for x
   x = 3,430,366,511.23/58,610.54
6. Step 6: Final answer
   x = 58,528.15