Finding the Fourth Proportional to 123,484.67, 170,416.72 and 75,731.53

Step by Step Solution

1. Step 1: Write the proportion equation
   123,484.67 : 170,416.72 = 75,731.53 : x
2. Step 2: Convert to fraction form
   123,484.67/170,416.72 = 75,731.53/x
3. Step 3: Cross multiply
   123,484.67x = 170,416.72 × 75,731.53
4. Step 4: Simplify right side
   123,484.67x = 12,905,918,611.80
5. Step 5: Solve for x
   x = 12,905,918,611.80/123,484.67
6. Step 6: Final answer
   x = 104,514.34