Finding the Fourth Proportional to 105,796.17, 145,975.91 and 61,058.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,796.17 : 145,975.91 = 61,058.25 : x
2. Step 2: Convert to fraction form
   105,796.17/145,975.91 = 61,058.25/x
3. Step 3: Cross multiply
   105,796.17x = 145,975.91 × 61,058.25
4. Step 4: Simplify right side
   105,796.17x = 8,913,033,301.47
5. Step 5: Solve for x
   x = 8,913,033,301.47/105,796.17
6. Step 6: Final answer
   x = 84,247.22