Finding the Fourth Proportional to 58,623.48, 81,007.56 and 42,680.16

Step by Step Solution

1. Step 1: Write the proportion equation
   58,623.48 : 81,007.56 = 42,680.16 : x
2. Step 2: Convert to fraction form
   58,623.48/81,007.56 = 42,680.16/x
3. Step 3: Cross multiply
   58,623.48x = 81,007.56 × 42,680.16
4. Step 4: Simplify right side
   58,623.48x = 3,457,415,622.01
5. Step 5: Solve for x
   x = 3,457,415,622.01/58,623.48
6. Step 6: Final answer
   x = 58,976.64