Finding the Fourth Proportional to 70,554.86, 105,748.86 and 31,029.30

Step by Step Solution

1. Step 1: Write the proportion equation
   70,554.86 : 105,748.86 = 31,029.30 : x
2. Step 2: Convert to fraction form
   70,554.86/105,748.86 = 31,029.30/x
3. Step 3: Cross multiply
   70,554.86x = 105,748.86 × 31,029.30
4. Step 4: Simplify right side
   70,554.86x = 3,281,313,101.60
5. Step 5: Solve for x
   x = 3,281,313,101.60/70,554.86
6. Step 6: Final answer
   x = 46,507.26