Finding the Fourth Proportional to 92,770.56, 139,072.68 and 42,825.42

Step by Step Solution

1. Step 1: Write the proportion equation
   92,770.56 : 139,072.68 = 42,825.42 : x
2. Step 2: Convert to fraction form
   92,770.56/139,072.68 = 42,825.42/x
3. Step 3: Cross multiply
   92,770.56x = 139,072.68 × 42,825.42
4. Step 4: Simplify right side
   92,770.56x = 5,955,845,931.53
5. Step 5: Solve for x
   x = 5,955,845,931.53/92,770.56
6. Step 6: Final answer
   x = 64,199.74