Finding the Fourth Proportional to 199,541.55, 275,373.78 and 113,498.31

Step by Step Solution

1. Step 1: Write the proportion equation
   199,541.55 : 275,373.78 = 113,498.31 : x
2. Step 2: Convert to fraction form
   199,541.55/275,373.78 = 113,498.31/x
3. Step 3: Cross multiply
   199,541.55x = 275,373.78 × 113,498.31
4. Step 4: Simplify right side
   199,541.55x = 31,254,459,255.34
5. Step 5: Solve for x
   x = 31,254,459,255.34/199,541.55
6. Step 6: Final answer
   x = 156,631.33