Finding the Fourth Proportional to 100,895, 139,239.42 and 56,183

Step by Step Solution

1. Step 1: Write the proportion equation
   100,895 : 139,239.42 = 56,183 : x
2. Step 2: Convert to fraction form
   100,895/139,239.42 = 56,183/x
3. Step 3: Cross multiply
   100,895x = 139,239.42 × 56,183
4. Step 4: Simplify right side
   100,895x = 7,822,888,333.86
5. Step 5: Solve for x
   x = 7,822,888,333.86/100,895
6. Step 6: Final answer
   x = 77,534.95