Finding the Fourth Proportional to 105,814.23, 146,026.04 and 58,070.61

Step by Step Solution

1. Step 1: Write the proportion equation
   105,814.23 : 146,026.04 = 58,070.61 : x
2. Step 2: Convert to fraction form
   105,814.23/146,026.04 = 58,070.61/x
3. Step 3: Cross multiply
   105,814.23x = 146,026.04 × 58,070.61
4. Step 4: Simplify right side
   105,814.23x = 8,479,820,928.33
5. Step 5: Solve for x
   x = 8,479,820,928.33/105,814.23
6. Step 6: Final answer
   x = 80,138.76