Finding the Fourth Proportional to 148,142.61, 204,404.18 and 87,683.13

Step by Step Solution

1. Step 1: Write the proportion equation
   148,142.61 : 204,404.18 = 87,683.13 : x
2. Step 2: Convert to fraction form
   148,142.61/204,404.18 = 87,683.13/x
3. Step 3: Cross multiply
   148,142.61x = 204,404.18 × 87,683.13
4. Step 4: Simplify right side
   148,142.61x = 17,922,797,849.07
5. Step 5: Solve for x
   x = 17,922,797,849.07/148,142.61
6. Step 6: Final answer
   x = 120,983.41