Finding the Fourth Proportional to 105,814.61, 146,027.88 and 58,068.35

Step by Step Solution

1. Step 1: Write the proportion equation
   105,814.61 : 146,027.88 = 58,068.35 : x
2. Step 2: Convert to fraction form
   105,814.61/146,027.88 = 58,068.35/x
3. Step 3: Cross multiply
   105,814.61x = 146,027.88 × 58,068.35
4. Step 4: Simplify right side
   105,814.61x = 8,479,598,045.60
5. Step 5: Solve for x
   x = 8,479,598,045.60/105,814.61
6. Step 6: Final answer
   x = 80,136.36