Finding the Fourth Proportional to 181,659.34, 272,485.86 and 81,748.84

Step by Step Solution

1. Step 1: Write the proportion equation
   181,659.34 : 272,485.86 = 81,748.84 : x
2. Step 2: Convert to fraction form
   181,659.34/272,485.86 = 81,748.84/x
3. Step 3: Cross multiply
   181,659.34x = 272,485.86 × 81,748.84
4. Step 4: Simplify right side
   181,659.34x = 22,275,402,971.40
5. Step 5: Solve for x
   x = 22,275,402,971.40/181,659.34
6. Step 6: Final answer
   x = 122,621.84