Finding the Fourth Proportional to 103,123.20, 154,595.52 and 61,482.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,123.20 : 154,595.52 = 61,482.72 : x
2. Step 2: Convert to fraction form
   103,123.20/154,595.52 = 61,482.72/x
3. Step 3: Cross multiply
   103,123.20x = 154,595.52 × 61,482.72
4. Step 4: Simplify right side
   103,123.20x = 9,504,953,069.41
5. Step 5: Solve for x
   x = 9,504,953,069.41/103,123.20
6. Step 6: Final answer
   x = 92,170.85