Finding the Fourth Proportional to 99,498.48, 137,304.48 and 54,175.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99,498.48 : 137,304.48 = 54,175.56 : x
2. Step 2: Convert to fraction form
   99,498.48/137,304.48 = 54,175.56/x
3. Step 3: Cross multiply
   99,498.48x = 137,304.48 × 54,175.56
4. Step 4: Simplify right side
   99,498.48x = 7,438,547,094.51
5. Step 5: Solve for x
   x = 7,438,547,094.51/99,498.48
6. Step 6: Final answer
   x = 74,760.41