Finding the Fourth Proportional to 123,200.12, 184,741.86 and 56,620.55

Step by Step Solution

1. Step 1: Write the proportion equation
   123,200.12 : 184,741.86 = 56,620.55 : x
2. Step 2: Convert to fraction form
   123,200.12/184,741.86 = 56,620.55/x
3. Step 3: Cross multiply
   123,200.12x = 184,741.86 × 56,620.55
4. Step 4: Simplify right side
   123,200.12x = 10,460,186,395.40
5. Step 5: Solve for x
   x = 10,460,186,395.40/123,200.12
6. Step 6: Final answer
   x = 84,904.03