Finding the Fourth Proportional to 75,010.67, 103,513.72 and 42,747.21

Step by Step Solution

1. Step 1: Write the proportion equation
   75,010.67 : 103,513.72 = 42,747.21 : x
2. Step 2: Convert to fraction form
   75,010.67/103,513.72 = 42,747.21/x
3. Step 3: Cross multiply
   75,010.67x = 103,513.72 × 42,747.21
4. Step 4: Simplify right side
   75,010.67x = 4,424,922,209.15
5. Step 5: Solve for x
   x = 4,424,922,209.15/75,010.67
6. Step 6: Final answer
   x = 58,990.57