Finding the Fourth Proportional to 89,595.99, 134,126.69 and 54,429.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,595.99 : 134,126.69 = 54,429.03 : x
2. Step 2: Convert to fraction form
   89,595.99/134,126.69 = 54,429.03/x
3. Step 3: Cross multiply
   89,595.99x = 134,126.69 × 54,429.03
4. Step 4: Simplify right side
   89,595.99x = 7,300,385,361.67
5. Step 5: Solve for x
   x = 7,300,385,361.67/89,595.99
6. Step 6: Final answer
   x = 81,481.16