Finding the Fourth Proportional to 77,993.96, 107,631.28 and 42,184

Step by Step Solution

1. Step 1: Write the proportion equation
   77,993.96 : 107,631.28 = 42,184 : x
2. Step 2: Convert to fraction form
   77,993.96/107,631.28 = 42,184/x
3. Step 3: Cross multiply
   77,993.96x = 107,631.28 × 42,184
4. Step 4: Simplify right side
   77,993.96x = 4,540,317,915.52
5. Step 5: Solve for x
   x = 4,540,317,915.52/77,993.96
6. Step 6: Final answer
   x = 58,213.71