Finding the Fourth Proportional to 92,087.19, 138,196.35 and 42,136.11

Step by Step Solution

1. Step 1: Write the proportion equation
   92,087.19 : 138,196.35 = 42,136.11 : x
2. Step 2: Convert to fraction form
   92,087.19/138,196.35 = 42,136.11/x
3. Step 3: Cross multiply
   92,087.19x = 138,196.35 × 42,136.11
4. Step 4: Simplify right side
   92,087.19x = 5,823,056,605.20
5. Step 5: Solve for x
   x = 5,823,056,605.20/92,087.19
6. Step 6: Final answer
   x = 63,234.17