Finding the Fourth Proportional to 98,945.62, 136,544.61 and 53,624.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98,945.62 : 136,544.61 = 53,624.72 : x
2. Step 2: Convert to fraction form
   98,945.62/136,544.61 = 53,624.72/x
3. Step 3: Cross multiply
   98,945.62x = 136,544.61 × 53,624.72
4. Step 4: Simplify right side
   98,945.62x = 7,322,165,796.04
5. Step 5: Solve for x
   x = 7,322,165,796.04/98,945.62
6. Step 6: Final answer
   x = 74,001.92