Finding the Fourth Proportional to 93,096.72, 128,476.20 and 50,658

Step by Step Solution

1. Step 1: Write the proportion equation
   93,096.72 : 128,476.20 = 50,658 : x
2. Step 2: Convert to fraction form
   93,096.72/128,476.20 = 50,658/x
3. Step 3: Cross multiply
   93,096.72x = 128,476.20 × 50,658
4. Step 4: Simplify right side
   93,096.72x = 6,508,347,339.60
5. Step 5: Solve for x
   x = 6,508,347,339.60/93,096.72
6. Step 6: Final answer
   x = 69,909.52