Finding the Fourth Proportional to 132,055.30, 182,238.80 and 81,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,055.30 : 182,238.80 = 81,042.50 : x
2. Step 2: Convert to fraction form
   132,055.30/182,238.80 = 81,042.50/x
3. Step 3: Cross multiply
   132,055.30x = 182,238.80 × 81,042.50
4. Step 4: Simplify right side
   132,055.30x = 14,769,087,999.38
5. Step 5: Solve for x
   x = 14,769,087,999.38/132,055.30
6. Step 6: Final answer
   x = 111,840.18