Finding the Fourth Proportional to 85,113, 117,456.75 and 47,388.06

Step by Step Solution

1. Step 1: Write the proportion equation
   85,113 : 117,456.75 = 47,388.06 : x
2. Step 2: Convert to fraction form
   85,113/117,456.75 = 47,388.06/x
3. Step 3: Cross multiply
   85,113x = 117,456.75 × 47,388.06
4. Step 4: Simplify right side
   85,113x = 5,566,047,516.41
5. Step 5: Solve for x
   x = 5,566,047,516.41/85,113
6. Step 6: Final answer
   x = 65,395.97