Finding the Fourth Proportional to 140,345.15, 193,762.11 and 91,333.47

Step by Step Solution

1. Step 1: Write the proportion equation
   140,345.15 : 193,762.11 = 91,333.47 : x
2. Step 2: Convert to fraction form
   140,345.15/193,762.11 = 91,333.47/x
3. Step 3: Cross multiply
   140,345.15x = 193,762.11 × 91,333.47
4. Step 4: Simplify right side
   140,345.15x = 17,696,965,860.82
5. Step 5: Solve for x
   x = 17,696,965,860.82/140,345.15
6. Step 6: Final answer
   x = 126,096.03