Finding the Fourth Proportional to 181,427, 272,047.20 and 81,501.48

Step by Step Solution

1. Step 1: Write the proportion equation
   181,427 : 272,047.20 = 81,501.48 : x
2. Step 2: Convert to fraction form
   181,427/272,047.20 = 81,501.48/x
3. Step 3: Cross multiply
   181,427x = 272,047.20 × 81,501.48
4. Step 4: Simplify right side
   181,427x = 22,172,249,429.86
5. Step 5: Solve for x
   x = 22,172,249,429.86/181,427
6. Step 6: Final answer
   x = 122,210.31