Finding the Fourth Proportional to 70,506.63, 105,787.61 and 31,036.05

Step by Step Solution

1. Step 1: Write the proportion equation
   70,506.63 : 105,787.61 = 31,036.05 : x
2. Step 2: Convert to fraction form
   70,506.63/105,787.61 = 31,036.05/x
3. Step 3: Cross multiply
   70,506.63x = 105,787.61 × 31,036.05
4. Step 4: Simplify right side
   70,506.63x = 3,283,229,398.16
5. Step 5: Solve for x
   x = 3,283,229,398.16/70,506.63
6. Step 6: Final answer
   x = 46,566.25