Finding the Fourth Proportional to 89,410.68, 134,146.62 and 56,090.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,410.68 : 134,146.62 = 56,090.52 : x
2. Step 2: Convert to fraction form
   89,410.68/134,146.62 = 56,090.52/x
3. Step 3: Cross multiply
   89,410.68x = 134,146.62 × 56,090.52
4. Step 4: Simplify right side
   89,410.68x = 7,524,353,672.04
5. Step 5: Solve for x
   x = 7,524,353,672.04/89,410.68
6. Step 6: Final answer
   x = 84,154.98