Finding the Fourth Proportional to 58,345.28, 80,466.72 and 49,314.32

Step by Step Solution

1. Step 1: Write the proportion equation
   58,345.28 : 80,466.72 = 49,314.32 : x
2. Step 2: Convert to fraction form
   58,345.28/80,466.72 = 49,314.32/x
3. Step 3: Cross multiply
   58,345.28x = 80,466.72 × 49,314.32
4. Step 4: Simplify right side
   58,345.28x = 3,968,161,579.43
5. Step 5: Solve for x
   x = 3,968,161,579.43/58,345.28
6. Step 6: Final answer
   x = 68,011.70