Finding the Fourth Proportional to 105,830.28, 146,047.62 and 58,088.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,830.28 : 146,047.62 = 58,088.10 : x
2. Step 2: Convert to fraction form
   105,830.28/146,047.62 = 58,088.10/x
3. Step 3: Cross multiply
   105,830.28x = 146,047.62 × 58,088.10
4. Step 4: Simplify right side
   105,830.28x = 8,483,628,755.32
5. Step 5: Solve for x
   x = 8,483,628,755.32/105,830.28
6. Step 6: Final answer
   x = 80,162.58