Finding the Fourth Proportional to 123,488.48, 185,148.48 and 59,412.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,488.48 : 185,148.48 = 59,412.80 : x
2. Step 2: Convert to fraction form
   123,488.48/185,148.48 = 59,412.80/x
3. Step 3: Cross multiply
   123,488.48x = 185,148.48 × 59,412.80
4. Step 4: Simplify right side
   123,488.48x = 11,000,189,612.54
5. Step 5: Solve for x
   x = 11,000,189,612.54/123,488.48
6. Step 6: Final answer
   x = 89,078.67