Finding the Fourth Proportional to 105,060.80, 144,978.26 and 59,732.58

Step by Step Solution

1. Step 1: Write the proportion equation
   105,060.80 : 144,978.26 = 59,732.58 : x
2. Step 2: Convert to fraction form
   105,060.80/144,978.26 = 59,732.58/x
3. Step 3: Cross multiply
   105,060.80x = 144,978.26 × 59,732.58
4. Step 4: Simplify right side
   105,060.80x = 8,659,925,513.71
5. Step 5: Solve for x
   x = 8,659,925,513.71/105,060.80
6. Step 6: Final answer
   x = 82,427.75