Finding the Fourth Proportional to 79,974.34, 120,034.05 and 42,565.90

Step by Step Solution

1. Step 1: Write the proportion equation
   79,974.34 : 120,034.05 = 42,565.90 : x
2. Step 2: Convert to fraction form
   79,974.34/120,034.05 = 42,565.90/x
3. Step 3: Cross multiply
   79,974.34x = 120,034.05 × 42,565.90
4. Step 4: Simplify right side
   79,974.34x = 5,109,357,368.90
5. Step 5: Solve for x
   x = 5,109,357,368.90/79,974.34
6. Step 6: Final answer
   x = 63,887.46