Finding the Fourth Proportional to 131,280.13, 181,411.82 and 107,398.09

Step by Step Solution

1. Step 1: Write the proportion equation
   131,280.13 : 181,411.82 = 107,398.09 : x
2. Step 2: Convert to fraction form
   131,280.13/181,411.82 = 107,398.09/x
3. Step 3: Cross multiply
   131,280.13x = 181,411.82 × 107,398.09
4. Step 4: Simplify right side
   131,280.13x = 19,483,282,971.42
5. Step 5: Solve for x
   x = 19,483,282,971.42/131,280.13
6. Step 6: Final answer
   x = 148,409.99