Finding the Fourth Proportional to 89,346, 123,303.76 and 59,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,346 : 123,303.76 = 59,078.72 : x
2. Step 2: Convert to fraction form
   89,346/123,303.76 = 59,078.72/x
3. Step 3: Cross multiply
   89,346x = 123,303.76 × 59,078.72
4. Step 4: Simplify right side
   89,346x = 7,284,628,311.99
5. Step 5: Solve for x
   x = 7,284,628,311.99/89,346
6. Step 6: Final answer
   x = 81,532.79