Finding the Fourth Proportional to 187,196.52, 258,333.12 and 102,315

Step by Step Solution

1. Step 1: Write the proportion equation
   187,196.52 : 258,333.12 = 102,315 : x
2. Step 2: Convert to fraction form
   187,196.52/258,333.12 = 102,315/x
3. Step 3: Cross multiply
   187,196.52x = 258,333.12 × 102,315
4. Step 4: Simplify right side
   187,196.52x = 26,431,353,172.80
5. Step 5: Solve for x
   x = 26,431,353,172.80/187,196.52
6. Step 6: Final answer
   x = 141,195.75