Finding the Fourth Proportional to 181,010.72, 249,796.52 and 100,445.74

Step by Step Solution

1. Step 1: Write the proportion equation
   181,010.72 : 249,796.52 = 100,445.74 : x
2. Step 2: Convert to fraction form
   181,010.72/249,796.52 = 100,445.74/x
3. Step 3: Cross multiply
   181,010.72x = 249,796.52 × 100,445.74
4. Step 4: Simplify right side
   181,010.72x = 25,090,996,300.82
5. Step 5: Solve for x
   x = 25,090,996,300.82/181,010.72
6. Step 6: Final answer
   x = 138,616.08