Finding the Fourth Proportional to 105,146.48, 145,096.08 and 59,818.16

Step by Step Solution

1. Step 1: Write the proportion equation
   105,146.48 : 145,096.08 = 59,818.16 : x
2. Step 2: Convert to fraction form
   105,146.48/145,096.08 = 59,818.16/x
3. Step 3: Cross multiply
   105,146.48x = 145,096.08 × 59,818.16
4. Step 4: Simplify right side
   105,146.48x = 8,679,380,528.81
5. Step 5: Solve for x
   x = 8,679,380,528.81/105,146.48
6. Step 6: Final answer
   x = 82,545.61