Finding the Fourth Proportional to 103,443.10, 155,054.38 and 58,974.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,443.10 : 155,054.38 = 58,974.10 : x
2. Step 2: Convert to fraction form
   103,443.10/155,054.38 = 58,974.10/x
3. Step 3: Cross multiply
   103,443.10x = 155,054.38 × 58,974.10
4. Step 4: Simplify right side
   103,443.10x = 9,144,192,511.56
5. Step 5: Solve for x
   x = 9,144,192,511.56/103,443.10
6. Step 6: Final answer
   x = 88,398.28