Finding the Fourth Proportional to 105,909.66, 146,156.34 and 58,164

Step by Step Solution

1. Step 1: Write the proportion equation
   105,909.66 : 146,156.34 = 58,164 : x
2. Step 2: Convert to fraction form
   105,909.66/146,156.34 = 58,164/x
3. Step 3: Cross multiply
   105,909.66x = 146,156.34 × 58,164
4. Step 4: Simplify right side
   105,909.66x = 8,501,037,359.76
5. Step 5: Solve for x
   x = 8,501,037,359.76/105,909.66
6. Step 6: Final answer
   x = 80,266.87