Finding the Fourth Proportional to 181,383, 272,080.59 and 81,543.51

Step by Step Solution

1. Step 1: Write the proportion equation
   181,383 : 272,080.59 = 81,543.51 : x
2. Step 2: Convert to fraction form
   181,383/272,080.59 = 81,543.51/x
3. Step 3: Cross multiply
   181,383x = 272,080.59 × 81,543.51
4. Step 4: Simplify right side
   181,383x = 22,186,406,311.47
5. Step 5: Solve for x
   x = 22,186,406,311.47/181,383
6. Step 6: Final answer
   x = 122,318.00