Finding the Fourth Proportional to 92,834.18, 128,111.06 and 50,392.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,834.18 : 128,111.06 = 50,392.72 : x
2. Step 2: Convert to fraction form
   92,834.18/128,111.06 = 50,392.72/x
3. Step 3: Cross multiply
   92,834.18x = 128,111.06 × 50,392.72
4. Step 4: Simplify right side
   92,834.18x = 6,455,864,581.19
5. Step 5: Solve for x
   x = 6,455,864,581.19/92,834.18
6. Step 6: Final answer
   x = 69,541.89