Finding the Fourth Proportional to 79,985.34, 120,050.76 and 42,577.08

Step by Step Solution

1. Step 1: Write the proportion equation
   79,985.34 : 120,050.76 = 42,577.08 : x
2. Step 2: Convert to fraction form
   79,985.34/120,050.76 = 42,577.08/x
3. Step 3: Cross multiply
   79,985.34x = 120,050.76 × 42,577.08
4. Step 4: Simplify right side
   79,985.34x = 5,111,410,812.58
5. Step 5: Solve for x
   x = 5,111,410,812.58/79,985.34
6. Step 6: Final answer
   x = 63,904.35