Finding the Fourth Proportional to 92,100.32, 138,002.82 and 83,243

Step by Step Solution

1. Step 1: Write the proportion equation
   92,100.32 : 138,002.82 = 83,243 : x
2. Step 2: Convert to fraction form
   92,100.32/138,002.82 = 83,243/x
3. Step 3: Cross multiply
   92,100.32x = 138,002.82 × 83,243
4. Step 4: Simplify right side
   92,100.32x = 11,487,768,745.26
5. Step 5: Solve for x
   x = 11,487,768,745.26/92,100.32
6. Step 6: Final answer
   x = 124,731.04