Finding the Fourth Proportional to 93,111.03, 128,492.40 and 50,669.61

Step by Step Solution

1. Step 1: Write the proportion equation
   93,111.03 : 128,492.40 = 50,669.61 : x
2. Step 2: Convert to fraction form
   93,111.03/128,492.40 = 50,669.61/x
3. Step 3: Cross multiply
   93,111.03x = 128,492.40 × 50,669.61
4. Step 4: Simplify right side
   93,111.03x = 6,510,659,795.96
5. Step 5: Solve for x
   x = 6,510,659,795.96/93,111.03
6. Step 6: Final answer
   x = 69,923.61