Finding the Fourth Proportional to 102,878.66, 141,976.59 and 60,436.82

Step by Step Solution

1. Step 1: Write the proportion equation
   102,878.66 : 141,976.59 = 60,436.82 : x
2. Step 2: Convert to fraction form
   102,878.66/141,976.59 = 60,436.82/x
3. Step 3: Cross multiply
   102,878.66x = 141,976.59 × 60,436.82
4. Step 4: Simplify right side
   102,878.66x = 8,580,613,614.04
5. Step 5: Solve for x
   x = 8,580,613,614.04/102,878.66
6. Step 6: Final answer
   x = 83,405.18