Finding the Fourth Proportional to 108,164.52, 149,308.10 and 81,384.89

Step by Step Solution

1. Step 1: Write the proportion equation
   108,164.52 : 149,308.10 = 81,384.89 : x
2. Step 2: Convert to fraction form
   108,164.52/149,308.10 = 81,384.89/x
3. Step 3: Cross multiply
   108,164.52x = 149,308.10 × 81,384.89
4. Step 4: Simplify right side
   108,164.52x = 12,151,422,141.14
5. Step 5: Solve for x
   x = 12,151,422,141.14/108,164.52
6. Step 6: Final answer
   x = 112,342.03