Finding the Fourth Proportional to 89,904.88, 134,815.60 and 52,475.73

Step by Step Solution

1. Step 1: Write the proportion equation
   89,904.88 : 134,815.60 = 52,475.73 : x
2. Step 2: Convert to fraction form
   89,904.88/134,815.60 = 52,475.73/x
3. Step 3: Cross multiply
   89,904.88x = 134,815.60 × 52,475.73
4. Step 4: Simplify right side
   89,904.88x = 7,074,547,025.39
5. Step 5: Solve for x
   x = 7,074,547,025.39/89,904.88
6. Step 6: Final answer
   x = 78,689.24