Finding the Fourth Proportional to 105,837.50, 146,056.87 and 58,089.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,837.50 : 146,056.87 = 58,089.83 : x
2. Step 2: Convert to fraction form
   105,837.50/146,056.87 = 58,089.83/x
3. Step 3: Cross multiply
   105,837.50x = 146,056.87 × 58,089.83
4. Step 4: Simplify right side
   105,837.50x = 8,484,418,090.96
5. Step 5: Solve for x
   x = 8,484,418,090.96/105,837.50
6. Step 6: Final answer
   x = 80,164.57