Finding the Fourth Proportional to 138,093.50, 189,743.16 and 109,749.98

Step by Step Solution

1. Step 1: Write the proportion equation
   138,093.50 : 189,743.16 = 109,749.98 : x
2. Step 2: Convert to fraction form
   138,093.50/189,743.16 = 109,749.98/x
3. Step 3: Cross multiply
   138,093.50x = 189,743.16 × 109,749.98
4. Step 4: Simplify right side
   138,093.50x = 20,824,307,066.42
5. Step 5: Solve for x
   x = 20,824,307,066.42/138,093.50
6. Step 6: Final answer
   x = 150,798.61