Finding the Fourth Proportional to 173,128.86, 238,916.82 and 96,643.53

Step by Step Solution

1. Step 1: Write the proportion equation
   173,128.86 : 238,916.82 = 96,643.53 : x
2. Step 2: Convert to fraction form
   173,128.86/238,916.82 = 96,643.53/x
3. Step 3: Cross multiply
   173,128.86x = 238,916.82 × 96,643.53
4. Step 4: Simplify right side
   173,128.86x = 23,089,764,861.17
5. Step 5: Solve for x
   x = 23,089,764,861.17/173,128.86
6. Step 6: Final answer
   x = 133,367.51