Finding the Fourth Proportional to 140,090.58, 193,341.33 and 78,007.32

Step by Step Solution

1. Step 1: Write the proportion equation
   140,090.58 : 193,341.33 = 78,007.32 : x
2. Step 2: Convert to fraction form
   140,090.58/193,341.33 = 78,007.32/x
3. Step 3: Cross multiply
   140,090.58x = 193,341.33 × 78,007.32
4. Step 4: Simplify right side
   140,090.58x = 15,082,038,998.54
5. Step 5: Solve for x
   x = 15,082,038,998.54/140,090.58
6. Step 6: Final answer
   x = 107,659.19