Finding the Fourth Proportional to 93,603.50, 129,152.48 and 55,365.15

Step by Step Solution

1. Step 1: Write the proportion equation
   93,603.50 : 129,152.48 = 55,365.15 : x
2. Step 2: Convert to fraction form
   93,603.50/129,152.48 = 55,365.15/x
3. Step 3: Cross multiply
   93,603.50x = 129,152.48 × 55,365.15
4. Step 4: Simplify right side
   93,603.50x = 7,150,546,635.57
5. Step 5: Solve for x
   x = 7,150,546,635.57/93,603.50
6. Step 6: Final answer
   x = 76,391.87