Finding the Fourth Proportional to 100,417.91, 138,575.52 and 55,096.29

Step by Step Solution

1. Step 1: Write the proportion equation
   100,417.91 : 138,575.52 = 55,096.29 : x
2. Step 2: Convert to fraction form
   100,417.91/138,575.52 = 55,096.29/x
3. Step 3: Cross multiply
   100,417.91x = 138,575.52 × 55,096.29
4. Step 4: Simplify right side
   100,417.91x = 7,634,997,036.82
5. Step 5: Solve for x
   x = 7,634,997,036.82/100,417.91
6. Step 6: Final answer
   x = 76,032.23