Finding the Fourth Proportional to 103,645.89, 155,219.69 and 59,137.70

Step by Step Solution

1. Step 1: Write the proportion equation
   103,645.89 : 155,219.69 = 59,137.70 : x
2. Step 2: Convert to fraction form
   103,645.89/155,219.69 = 59,137.70/x
3. Step 3: Cross multiply
   103,645.89x = 155,219.69 × 59,137.70
4. Step 4: Simplify right side
   103,645.89x = 9,179,336,142.72
5. Step 5: Solve for x
   x = 9,179,336,142.72/103,645.89
6. Step 6: Final answer
   x = 88,564.40