Finding the Fourth Proportional to 105,839, 146,052.53 and 62,820.36

Step by Step Solution

1. Step 1: Write the proportion equation
   105,839 : 146,052.53 = 62,820.36 : x
2. Step 2: Convert to fraction form
   105,839/146,052.53 = 62,820.36/x
3. Step 3: Cross multiply
   105,839x = 146,052.53 × 62,820.36
4. Step 4: Simplify right side
   105,839x = 9,175,072,513.51
5. Step 5: Solve for x
   x = 9,175,072,513.51/105,839
6. Step 6: Final answer
   x = 86,688.96