Finding the Fourth Proportional to 89,681.76, 123,697.08 and 59,017.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,681.76 : 123,697.08 = 59,017.68 : x
2. Step 2: Convert to fraction form
   89,681.76/123,697.08 = 59,017.68/x
3. Step 3: Cross multiply
   89,681.76x = 123,697.08 × 59,017.68
4. Step 4: Simplify right side
   89,681.76x = 7,300,314,684.37
5. Step 5: Solve for x
   x = 7,300,314,684.37/89,681.76
6. Step 6: Final answer
   x = 81,402.45