Finding the Fourth Proportional to 73,012.31, 109,515.42 and 39,941.90

Step by Step Solution

1. Step 1: Write the proportion equation
   73,012.31 : 109,515.42 = 39,941.90 : x
2. Step 2: Convert to fraction form
   73,012.31/109,515.42 = 39,941.90/x
3. Step 3: Cross multiply
   73,012.31x = 109,515.42 × 39,941.90
4. Step 4: Simplify right side
   73,012.31x = 4,374,253,406.52
5. Step 5: Solve for x
   x = 4,374,253,406.52/73,012.31
6. Step 6: Final answer
   x = 59,911.18