Finding the Fourth Proportional to 60,876.32, 83,853.08 and 42,939.80

Step by Step Solution

1. Step 1: Write the proportion equation
   60,876.32 : 83,853.08 = 42,939.80 : x
2. Step 2: Convert to fraction form
   60,876.32/83,853.08 = 42,939.80/x
3. Step 3: Cross multiply
   60,876.32x = 83,853.08 × 42,939.80
4. Step 4: Simplify right side
   60,876.32x = 3,600,634,484.58
5. Step 5: Solve for x
   x = 3,600,634,484.58/60,876.32
6. Step 6: Final answer
   x = 59,146.72