Finding the Fourth Proportional to 88,499.23, 122,128.45 and 48,212.89

Step by Step Solution

1. Step 1: Write the proportion equation
   88,499.23 : 122,128.45 = 48,212.89 : x
2. Step 2: Convert to fraction form
   88,499.23/122,128.45 = 48,212.89/x
3. Step 3: Cross multiply
   88,499.23x = 122,128.45 × 48,212.89
4. Step 4: Simplify right side
   88,499.23x = 5,888,165,099.87
5. Step 5: Solve for x
   x = 5,888,165,099.87/88,499.23
6. Step 6: Final answer
   x = 66,533.52