Finding the Fourth Proportional to 105,047.55, 144,962.04 and 62,605.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105,047.55 : 144,962.04 = 62,605.31 : x
2. Step 2: Convert to fraction form
   105,047.55/144,962.04 = 62,605.31/x
3. Step 3: Cross multiply
   105,047.55x = 144,962.04 × 62,605.31
4. Step 4: Simplify right side
   105,047.55x = 9,075,393,139.41
5. Step 5: Solve for x
   x = 9,075,393,139.41/105,047.55
6. Step 6: Final answer
   x = 86,393.19