Finding the Fourth Proportional to 88,499.47, 122,128.78 and 48,213.15

Step by Step Solution

1. Step 1: Write the proportion equation
   88,499.47 : 122,128.78 = 48,213.15 : x
2. Step 2: Convert to fraction form
   88,499.47/122,128.78 = 48,213.15/x
3. Step 3: Cross multiply
   88,499.47x = 122,128.78 × 48,213.15
4. Step 4: Simplify right side
   88,499.47x = 5,888,213,189.46
5. Step 5: Solve for x
   x = 5,888,213,189.46/88,499.47
6. Step 6: Final answer
   x = 66,533.88