Finding the Fourth Proportional to 58,456.81, 80,669.91 and 31,599.10

Step by Step Solution

1. Step 1: Write the proportion equation
   58,456.81 : 80,669.91 = 31,599.10 : x
2. Step 2: Convert to fraction form
   58,456.81/80,669.91 = 31,599.10/x
3. Step 3: Cross multiply
   58,456.81x = 80,669.91 × 31,599.10
4. Step 4: Simplify right side
   58,456.81x = 2,549,096,553.08
5. Step 5: Solve for x
   x = 2,549,096,553.08/58,456.81
6. Step 6: Final answer
   x = 43,606.49