Finding the Fourth Proportional to 105,639, 145,781.82 and 60,927

Step by Step Solution

1. Step 1: Write the proportion equation
   105,639 : 145,781.82 = 60,927 : x
2. Step 2: Convert to fraction form
   105,639/145,781.82 = 60,927/x
3. Step 3: Cross multiply
   105,639x = 145,781.82 × 60,927
4. Step 4: Simplify right side
   105,639x = 8,882,048,947.14
5. Step 5: Solve for x
   x = 8,882,048,947.14/105,639
6. Step 6: Final answer
   x = 84,079.26