Finding the Fourth Proportional to 89,384.38, 134,074.94 and 75,434.02

Step by Step Solution

1. Step 1: Write the proportion equation
   89,384.38 : 134,074.94 = 75,434.02 : x
2. Step 2: Convert to fraction form
   89,384.38/134,074.94 = 75,434.02/x
3. Step 3: Cross multiply
   89,384.38x = 134,074.94 × 75,434.02
4. Step 4: Simplify right side
   89,384.38x = 10,113,811,705.46
5. Step 5: Solve for x
   x = 10,113,811,705.46/89,384.38
6. Step 6: Final answer
   x = 113,149.65