Finding the Fourth Proportional to 111,343.31, 167,024.63 and 31,381.80

Step by Step Solution

1. Step 1: Write the proportion equation
   111,343.31 : 167,024.63 = 31,381.80 : x
2. Step 2: Convert to fraction form
   111,343.31/167,024.63 = 31,381.80/x
3. Step 3: Cross multiply
   111,343.31x = 167,024.63 × 31,381.80
4. Step 4: Simplify right side
   111,343.31x = 5,241,533,376.83
5. Step 5: Solve for x
   x = 5,241,533,376.83/111,343.31
6. Step 6: Final answer
   x = 47,075.42