Finding the Fourth Proportional to 107,139.42, 160,735.90 and 75,611.03

Step by Step Solution

1. Step 1: Write the proportion equation
   107,139.42 : 160,735.90 = 75,611.03 : x
2. Step 2: Convert to fraction form
   107,139.42/160,735.90 = 75,611.03/x
3. Step 3: Cross multiply
   107,139.42x = 160,735.90 × 75,611.03
4. Step 4: Simplify right side
   107,139.42x = 12,153,406,272.22
5. Step 5: Solve for x
   x = 12,153,406,272.22/107,139.42
6. Step 6: Final answer
   x = 113,435.43