Finding the Fourth Proportional to 102,448, 141,379.32 and 57,736

Step by Step Solution

1. Step 1: Write the proportion equation
   102,448 : 141,379.32 = 57,736 : x
2. Step 2: Convert to fraction form
   102,448/141,379.32 = 57,736/x
3. Step 3: Cross multiply
   102,448x = 141,379.32 × 57,736
4. Step 4: Simplify right side
   102,448x = 8,162,676,419.52
5. Step 5: Solve for x
   x = 8,162,676,419.52/102,448
6. Step 6: Final answer
   x = 79,676.29