Finding the Fourth Proportional to 71,196.60, 98,316.54 and 57,152.28

Step by Step Solution

1. Step 1: Write the proportion equation
   71,196.60 : 98,316.54 = 57,152.28 : x
2. Step 2: Convert to fraction form
   71,196.60/98,316.54 = 57,152.28/x
3. Step 3: Cross multiply
   71,196.60x = 98,316.54 × 57,152.28
4. Step 4: Simplify right side
   71,196.60x = 5,619,014,422.71
5. Step 5: Solve for x
   x = 5,619,014,422.71/71,196.60
6. Step 6: Final answer
   x = 78,922.51