Finding the Fourth Proportional to 101,760.72, 152,609.99 and 70,372.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,760.72 : 152,609.99 = 70,372.50 : x
2. Step 2: Convert to fraction form
   101,760.72/152,609.99 = 70,372.50/x
3. Step 3: Cross multiply
   101,760.72x = 152,609.99 × 70,372.50
4. Step 4: Simplify right side
   101,760.72x = 10,739,546,169.41
5. Step 5: Solve for x
   x = 10,739,546,169.41/101,760.72
6. Step 6: Final answer
   x = 105,537.25