Finding the Fourth Proportional to 89,140.80, 123,012.32 and 48,853.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,140.80 : 123,012.32 = 48,853.68 : x
2. Step 2: Convert to fraction form
   89,140.80/123,012.32 = 48,853.68/x
3. Step 3: Cross multiply
   89,140.80x = 123,012.32 × 48,853.68
4. Step 4: Simplify right side
   89,140.80x = 6,009,604,517.34
5. Step 5: Solve for x
   x = 6,009,604,517.34/89,140.80
6. Step 6: Final answer
   x = 67,416.99