Finding the Fourth Proportional to 105,045.56, 144,966.72 and 59,731.16

Step by Step Solution

1. Step 1: Write the proportion equation
   105,045.56 : 144,966.72 = 59,731.16 : x
2. Step 2: Convert to fraction form
   105,045.56/144,966.72 = 59,731.16/x
3. Step 3: Cross multiply
   105,045.56x = 144,966.72 × 59,731.16
4. Step 4: Simplify right side
   105,045.56x = 8,659,030,347.00
5. Step 5: Solve for x
   x = 8,659,030,347.00/105,045.56
6. Step 6: Final answer
   x = 82,431.19