Finding the Fourth Proportional to 105,888.21, 146,124.72 and 58,141.14

Step by Step Solution

1. Step 1: Write the proportion equation
   105,888.21 : 146,124.72 = 58,141.14 : x
2. Step 2: Convert to fraction form
   105,888.21/146,124.72 = 58,141.14/x
3. Step 3: Cross multiply
   105,888.21x = 146,124.72 × 58,141.14
4. Step 4: Simplify right side
   105,888.21x = 8,495,857,802.98
5. Step 5: Solve for x
   x = 8,495,857,802.98/105,888.21
6. Step 6: Final answer
   x = 80,234.22