Finding the Fourth Proportional to 123,061.80, 184,538.70 and 56,479.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,061.80 : 184,538.70 = 56,479.80 : x
2. Step 2: Convert to fraction form
   123,061.80/184,538.70 = 56,479.80/x
3. Step 3: Cross multiply
   123,061.80x = 184,538.70 × 56,479.80
4. Step 4: Simplify right side
   123,061.80x = 10,422,708,868.26
5. Step 5: Solve for x
   x = 10,422,708,868.26/123,061.80
6. Step 6: Final answer
   x = 84,694.92