Finding the Fourth Proportional to 123,381.72, 185,148.72 and 48,488.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,381.72 : 185,148.72 = 48,488.72 : x
2. Step 2: Convert to fraction form
   123,381.72/185,148.72 = 48,488.72/x
3. Step 3: Cross multiply
   123,381.72x = 185,148.72 × 48,488.72
4. Step 4: Simplify right side
   123,381.72x = 8,977,623,516.69
5. Step 5: Solve for x
   x = 8,977,623,516.69/123,381.72
6. Step 6: Final answer
   x = 72,763.00