Finding the Fourth Proportional to 102,297.72, 141,165.30 and 56,348.43

Step by Step Solution

1. Step 1: Write the proportion equation
   102,297.72 : 141,165.30 = 56,348.43 : x
2. Step 2: Convert to fraction form
   102,297.72/141,165.30 = 56,348.43/x
3. Step 3: Cross multiply
   102,297.72x = 141,165.30 × 56,348.43
4. Step 4: Simplify right side
   102,297.72x = 7,954,443,025.48
5. Step 5: Solve for x
   x = 7,954,443,025.48/102,297.72
6. Step 6: Final answer
   x = 77,757.77