Finding the Fourth Proportional to 105,814.53, 146,025.84 and 58,072.32

Step by Step Solution

1. Step 1: Write the proportion equation
   105,814.53 : 146,025.84 = 58,072.32 : x
2. Step 2: Convert to fraction form
   105,814.53/146,025.84 = 58,072.32/x
3. Step 3: Cross multiply
   105,814.53x = 146,025.84 × 58,072.32
4. Step 4: Simplify right side
   105,814.53x = 8,480,059,308.75
5. Step 5: Solve for x
   x = 8,480,059,308.75/105,814.53
6. Step 6: Final answer
   x = 80,140.78