Finding the Fourth Proportional to 111,875.42, 167,787.50 and 31,911.87

Step by Step Solution

1. Step 1: Write the proportion equation
   111,875.42 : 167,787.50 = 31,911.87 : x
2. Step 2: Convert to fraction form
   111,875.42/167,787.50 = 31,911.87/x
3. Step 3: Cross multiply
   111,875.42x = 167,787.50 × 31,911.87
4. Step 4: Simplify right side
   111,875.42x = 5,354,412,887.63
5. Step 5: Solve for x
   x = 5,354,412,887.63/111,875.42
6. Step 6: Final answer
   x = 47,860.49