Finding the Fourth Proportional to 139,016.18, 191,837.18 and 75,352.61

Step by Step Solution

1. Step 1: Write the proportion equation
   139,016.18 : 191,837.18 = 75,352.61 : x
2. Step 2: Convert to fraction form
   139,016.18/191,837.18 = 75,352.61/x
3. Step 3: Cross multiply
   139,016.18x = 191,837.18 × 75,352.61
4. Step 4: Simplify right side
   139,016.18x = 14,455,432,876.01
5. Step 5: Solve for x
   x = 14,455,432,876.01/139,016.18
6. Step 6: Final answer
   x = 103,983.81