Finding the Fourth Proportional to 98,016.72, 135,263.16 and 53,304.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98,016.72 : 135,263.16 = 53,304.72 : x
2. Step 2: Convert to fraction form
   98,016.72/135,263.16 = 53,304.72/x
3. Step 3: Cross multiply
   98,016.72x = 135,263.16 × 53,304.72
4. Step 4: Simplify right side
   98,016.72x = 7,210,164,870.12
5. Step 5: Solve for x
   x = 7,210,164,870.12/98,016.72
6. Step 6: Final answer
   x = 73,560.56