Finding the Fourth Proportional to 101,019.82, 139,423.78 and 60,774.26

Step by Step Solution

1. Step 1: Write the proportion equation
   101,019.82 : 139,423.78 = 60,774.26 : x
2. Step 2: Convert to fraction form
   101,019.82/139,423.78 = 60,774.26/x
3. Step 3: Cross multiply
   101,019.82x = 139,423.78 × 60,774.26
4. Step 4: Simplify right side
   101,019.82x = 8,473,377,055.90
5. Step 5: Solve for x
   x = 8,473,377,055.90/101,019.82
6. Step 6: Final answer
   x = 83,878.36