Finding the Fourth Proportional to 105,042.98, 144,945.63 and 59,720.00

Step by Step Solution

1. Step 1: Write the proportion equation
   105,042.98 : 144,945.63 = 59,720.00 : x
2. Step 2: Convert to fraction form
   105,042.98/144,945.63 = 59,720.00/x
3. Step 3: Cross multiply
   105,042.98x = 144,945.63 × 59,720.00
4. Step 4: Simplify right side
   105,042.98x = 8,656,152,298.87
5. Step 5: Solve for x
   x = 8,656,152,298.87/105,042.98
6. Step 6: Final answer
   x = 82,405.82