Finding the Fourth Proportional to 199,005.60, 298,498.56 and 74,337.12

Step by Step Solution

1. Step 1: Write the proportion equation
   199,005.60 : 298,498.56 = 74,337.12 : x
2. Step 2: Convert to fraction form
   199,005.60/298,498.56 = 74,337.12/x
3. Step 3: Cross multiply
   199,005.60x = 298,498.56 × 74,337.12
4. Step 4: Simplify right side
   199,005.60x = 22,189,523,274.55
5. Step 5: Solve for x
   x = 22,189,523,274.55/199,005.60
6. Step 6: Final answer
   x = 111,502.00