Finding the Fourth Proportional to 105,461.59, 145,514.45 and 62,454.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,461.59 : 145,514.45 = 62,454.59 : x
2. Step 2: Convert to fraction form
   105,461.59/145,514.45 = 62,454.59/x
3. Step 3: Cross multiply
   105,461.59x = 145,514.45 × 62,454.59
4. Step 4: Simplify right side
   105,461.59x = 9,088,045,313.83
5. Step 5: Solve for x
   x = 9,088,045,313.83/105,461.59
6. Step 6: Final answer
   x = 86,173.98