Finding the Fourth Proportional to 87,173, 130,552.86 and 55,469.96

Step by Step Solution

1. Step 1: Write the proportion equation
   87,173 : 130,552.86 = 55,469.96 : x
2. Step 2: Convert to fraction form
   87,173/130,552.86 = 55,469.96/x
3. Step 3: Cross multiply
   87,173x = 130,552.86 × 55,469.96
4. Step 4: Simplify right side
   87,173x = 7,241,761,922.09
5. Step 5: Solve for x
   x = 7,241,761,922.09/87,173
6. Step 6: Final answer
   x = 83,073.45