Finding the Fourth Proportional to 42,640.87, 58,844.54 and 23,779.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,640.87 : 58,844.54 = 23,779.21 : x
2. Step 2: Convert to fraction form
   42,640.87/58,844.54 = 23,779.21/x
3. Step 3: Cross multiply
   42,640.87x = 58,844.54 × 23,779.21
4. Step 4: Simplify right side
   42,640.87x = 1,399,276,674.01
5. Step 5: Solve for x
   x = 1,399,276,674.01/42,640.87
6. Step 6: Final answer
   x = 32,815.39