Finding the Fourth Proportional to 99,735.80, 137,616.56 and 59,453.31

Step by Step Solution

1. Step 1: Write the proportion equation
   99,735.80 : 137,616.56 = 59,453.31 : x
2. Step 2: Convert to fraction form
   99,735.80/137,616.56 = 59,453.31/x
3. Step 3: Cross multiply
   99,735.80x = 137,616.56 × 59,453.31
4. Step 4: Simplify right side
   99,735.80x = 8,181,759,705.55
5. Step 5: Solve for x
   x = 8,181,759,705.55/99,735.80
6. Step 6: Final answer
   x = 82,034.34