Finding the Fourth Proportional to 101,308.51, 151,959.12 and 31,186

Step by Step Solution

1. Step 1: Write the proportion equation
   101,308.51 : 151,959.12 = 31,186 : x
2. Step 2: Convert to fraction form
   101,308.51/151,959.12 = 31,186/x
3. Step 3: Cross multiply
   101,308.51x = 151,959.12 × 31,186
4. Step 4: Simplify right side
   101,308.51x = 4,738,997,116.32
5. Step 5: Solve for x
   x = 4,738,997,116.32/101,308.51
6. Step 6: Final answer
   x = 46,777.88