Finding the Fourth Proportional to 105,796.17, 145,998.71 and 60,475.13

Step by Step Solution

1. Step 1: Write the proportion equation
   105,796.17 : 145,998.71 = 60,475.13 : x
2. Step 2: Convert to fraction form
   105,796.17/145,998.71 = 60,475.13/x
3. Step 3: Cross multiply
   105,796.17x = 145,998.71 × 60,475.13
4. Step 4: Simplify right side
   105,796.17x = 8,829,290,967.08
5. Step 5: Solve for x
   x = 8,829,290,967.08/105,796.17
6. Step 6: Final answer
   x = 83,455.68