Finding the Fourth Proportional to 148,455, 204,870.33 and 81,387

Step by Step Solution

1. Step 1: Write the proportion equation
   148,455 : 204,870.33 = 81,387 : x
2. Step 2: Convert to fraction form
   148,455/204,870.33 = 81,387/x
3. Step 3: Cross multiply
   148,455x = 204,870.33 × 81,387
4. Step 4: Simplify right side
   148,455x = 16,673,781,547.71
5. Step 5: Solve for x
   x = 16,673,781,547.71/148,455
6. Step 6: Final answer
   x = 112,315.39