Finding the Fourth Proportional to 89,551.34, 123,510.88 and 55,540.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,551.34 : 123,510.88 = 55,540.75 : x
2. Step 2: Convert to fraction form
   89,551.34/123,510.88 = 55,540.75/x
3. Step 3: Cross multiply
   89,551.34x = 123,510.88 × 55,540.75
4. Step 4: Simplify right side
   89,551.34x = 6,859,886,908.36
5. Step 5: Solve for x
   x = 6,859,886,908.36/89,551.34
6. Step 6: Final answer
   x = 76,602.84