Finding the Fourth Proportional to 89,823.30, 123,964.50 and 51,588.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,823.30 : 123,964.50 = 51,588.12 : x
2. Step 2: Convert to fraction form
   89,823.30/123,964.50 = 51,588.12/x
3. Step 3: Cross multiply
   89,823.30x = 123,964.50 × 51,588.12
4. Step 4: Simplify right side
   89,823.30x = 6,395,095,501.74
5. Step 5: Solve for x
   x = 6,395,095,501.74/89,823.30
6. Step 6: Final answer
   x = 71,196.40