Finding the Fourth Proportional to 83,613.76, 115,386.88 and 47,804.56

Step by Step Solution

1. Step 1: Write the proportion equation
   83,613.76 : 115,386.88 = 47,804.56 : x
2. Step 2: Convert to fraction form
   83,613.76/115,386.88 = 47,804.56/x
3. Step 3: Cross multiply
   83,613.76x = 115,386.88 × 47,804.56
4. Step 4: Simplify right side
   83,613.76x = 5,516,019,028.17
5. Step 5: Solve for x
   x = 5,516,019,028.17/83,613.76
6. Step 6: Final answer
   x = 65,970.23