Finding the Fourth Proportional to 102,238.89, 141,095.06 and 56,920.83

Step by Step Solution

1. Step 1: Write the proportion equation
   102,238.89 : 141,095.06 = 56,920.83 : x
2. Step 2: Convert to fraction form
   102,238.89/141,095.06 = 56,920.83/x
3. Step 3: Cross multiply
   102,238.89x = 141,095.06 × 56,920.83
4. Step 4: Simplify right side
   102,238.89x = 8,031,247,924.10
5. Step 5: Solve for x
   x = 8,031,247,924.10/102,238.89
6. Step 6: Final answer
   x = 78,553.75