Finding the Fourth Proportional to 102,637.22, 141,638.04 and 57,315.98

Step by Step Solution

1. Step 1: Write the proportion equation
   102,637.22 : 141,638.04 = 57,315.98 : x
2. Step 2: Convert to fraction form
   102,637.22/141,638.04 = 57,315.98/x
3. Step 3: Cross multiply
   102,637.22x = 141,638.04 × 57,315.98
4. Step 4: Simplify right side
   102,637.22x = 8,118,123,067.88
5. Step 5: Solve for x
   x = 8,118,123,067.88/102,637.22
6. Step 6: Final answer
   x = 79,095.31