Finding the Fourth Proportional to 105,051.30, 144,982.88 and 58,488.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,051.30 : 144,982.88 = 58,488.86 : x
2. Step 2: Convert to fraction form
   105,051.30/144,982.88 = 58,488.86/x
3. Step 3: Cross multiply
   105,051.30x = 144,982.88 × 58,488.86
4. Step 4: Simplify right side
   105,051.30x = 8,479,882,572.69
5. Step 5: Solve for x
   x = 8,479,882,572.69/105,051.30
6. Step 6: Final answer
   x = 80,721.35