Finding the Fourth Proportional to 123,499.89, 184,742.38 and 98,588.60

Step by Step Solution

1. Step 1: Write the proportion equation
   123,499.89 : 184,742.38 = 98,588.60 : x
2. Step 2: Convert to fraction form
   123,499.89/184,742.38 = 98,588.60/x
3. Step 3: Cross multiply
   123,499.89x = 184,742.38 × 98,588.60
4. Step 4: Simplify right side
   123,499.89x = 18,213,491,681.16
5. Step 5: Solve for x
   x = 18,213,491,681.16/123,499.89
6. Step 6: Final answer
   x = 147,477.80