Finding the Fourth Proportional to 92,838.32, 139,131.64 and 67,760.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,838.32 : 139,131.64 = 67,760.72 : x
2. Step 2: Convert to fraction form
   92,838.32/139,131.64 = 67,760.72/x
3. Step 3: Cross multiply
   92,838.32x = 139,131.64 × 67,760.72
4. Step 4: Simplify right side
   92,838.32x = 9,427,660,101.18
5. Step 5: Solve for x
   x = 9,427,660,101.18/92,838.32
6. Step 6: Final answer
   x = 101,549.23