Finding the Fourth Proportional to 61,248, 91,893.87 and 30,105.12

Step by Step Solution

1. Step 1: Write the proportion equation
   61,248 : 91,893.87 = 30,105.12 : x
2. Step 2: Convert to fraction form
   61,248/91,893.87 = 30,105.12/x
3. Step 3: Cross multiply
   61,248x = 91,893.87 × 30,105.12
4. Step 4: Simplify right side
   61,248x = 2,766,475,983.61
5. Step 5: Solve for x
   x = 2,766,475,983.61/61,248
6. Step 6: Final answer
   x = 45,168.43