Finding the Fourth Proportional to 78,922.32, 108,894.87 and 47,085

Step by Step Solution

1. Step 1: Write the proportion equation
   78,922.32 : 108,894.87 = 47,085 : x
2. Step 2: Convert to fraction form
   78,922.32/108,894.87 = 47,085/x
3. Step 3: Cross multiply
   78,922.32x = 108,894.87 × 47,085
4. Step 4: Simplify right side
   78,922.32x = 5,127,314,953.95
5. Step 5: Solve for x
   x = 5,127,314,953.95/78,922.32
6. Step 6: Final answer
   x = 64,966.60