Finding the Fourth Proportional to 130,408.55, 195,685.49 and 70,435.81

Step by Step Solution

1. Step 1: Write the proportion equation
   130,408.55 : 195,685.49 = 70,435.81 : x
2. Step 2: Convert to fraction form
   130,408.55/195,685.49 = 70,435.81/x
3. Step 3: Cross multiply
   130,408.55x = 195,685.49 × 70,435.81
4. Step 4: Simplify right side
   130,408.55x = 13,783,266,017.89
5. Step 5: Solve for x
   x = 13,783,266,017.89/130,408.55
6. Step 6: Final answer
   x = 105,692.96