Finding the Fourth Proportional to 93,630.33, 129,199.73 and 55,391.31

Step by Step Solution

1. Step 1: Write the proportion equation
   93,630.33 : 129,199.73 = 55,391.31 : x
2. Step 2: Convert to fraction form
   93,630.33/129,199.73 = 55,391.31/x
3. Step 3: Cross multiply
   93,630.33x = 129,199.73 × 55,391.31
4. Step 4: Simplify right side
   93,630.33x = 7,156,542,019.39
5. Step 5: Solve for x
   x = 7,156,542,019.39/93,630.33
6. Step 6: Final answer
   x = 76,434.01