Finding the Fourth Proportional to 89,875.50, 123,736.68 and 70,721.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,875.50 : 123,736.68 = 70,721.52 : x
2. Step 2: Convert to fraction form
   89,875.50/123,736.68 = 70,721.52/x
3. Step 3: Cross multiply
   89,875.50x = 123,736.68 × 70,721.52
4. Step 4: Simplify right side
   89,875.50x = 8,750,846,089.35
5. Step 5: Solve for x
   x = 8,750,846,089.35/89,875.50
6. Step 6: Final answer
   x = 97,366.31