Finding the Fourth Proportional to 77,977.35, 107,608.82 and 42,167.34

Step by Step Solution

1. Step 1: Write the proportion equation
   77,977.35 : 107,608.82 = 42,167.34 : x
2. Step 2: Convert to fraction form
   77,977.35/107,608.82 = 42,167.34/x
3. Step 3: Cross multiply
   77,977.35x = 107,608.82 × 42,167.34
4. Step 4: Simplify right side
   77,977.35x = 4,537,577,489.10
5. Step 5: Solve for x
   x = 4,537,577,489.10/77,977.35
6. Step 6: Final answer
   x = 58,190.97