Finding the Fourth Proportional to 105,479.33, 145,560.38 and 60,156.14

Step by Step Solution

1. Step 1: Write the proportion equation
   105,479.33 : 145,560.38 = 60,156.14 : x
2. Step 2: Convert to fraction form
   105,479.33/145,560.38 = 60,156.14/x
3. Step 3: Cross multiply
   105,479.33x = 145,560.38 × 60,156.14
4. Step 4: Simplify right side
   105,479.33x = 8,756,349,569.15
5. Step 5: Solve for x
   x = 8,756,349,569.15/105,479.33
6. Step 6: Final answer
   x = 83,014.84