Finding the Fourth Proportional to 145,541.39, 200,830.86 and 81,877.82

Step by Step Solution

1. Step 1: Write the proportion equation
   145,541.39 : 200,830.86 = 81,877.82 : x
2. Step 2: Convert to fraction form
   145,541.39/200,830.86 = 81,877.82/x
3. Step 3: Cross multiply
   145,541.39x = 200,830.86 × 81,877.82
4. Step 4: Simplify right side
   145,541.39x = 16,443,592,001.37
5. Step 5: Solve for x
   x = 16,443,592,001.37/145,541.39
6. Step 6: Final answer
   x = 112,982.24