Finding the Fourth Proportional to 103,893.57, 143,373.15 and 59,181.57

Step by Step Solution

1. Step 1: Write the proportion equation
   103,893.57 : 143,373.15 = 59,181.57 : x
2. Step 2: Convert to fraction form
   103,893.57/143,373.15 = 59,181.57/x
3. Step 3: Cross multiply
   103,893.57x = 143,373.15 × 59,181.57
4. Step 4: Simplify right side
   103,893.57x = 8,485,048,112.85
5. Step 5: Solve for x
   x = 8,485,048,112.85/103,893.57
6. Step 6: Final answer
   x = 81,670.58