Finding the Fourth Proportional to 92,008.10, 137,340.70 and 78,944.42

Step by Step Solution

1. Step 1: Write the proportion equation
   92,008.10 : 137,340.70 = 78,944.42 : x
2. Step 2: Convert to fraction form
   92,008.10/137,340.70 = 78,944.42/x
3. Step 3: Cross multiply
   92,008.10x = 137,340.70 × 78,944.42
4. Step 4: Simplify right side
   92,008.10x = 10,842,281,903.89
5. Step 5: Solve for x
   x = 10,842,281,903.89/92,008.10
6. Step 6: Final answer
   x = 117,840.52