Finding the Fourth Proportional to 75,645, 104,396.58 and 42,117.48

Step by Step Solution

1. Step 1: Write the proportion equation
   75,645 : 104,396.58 = 42,117.48 : x
2. Step 2: Convert to fraction form
   75,645/104,396.58 = 42,117.48/x
3. Step 3: Cross multiply
   75,645x = 104,396.58 × 42,117.48
4. Step 4: Simplify right side
   75,645x = 4,396,920,870.22
5. Step 5: Solve for x
   x = 4,396,920,870.22/75,645
6. Step 6: Final answer
   x = 58,125.73