Finding the Fourth Proportional to 112,290.32, 168,346.04 and 64,851.60

Step by Step Solution

1. Step 1: Write the proportion equation
   112,290.32 : 168,346.04 = 64,851.60 : x
2. Step 2: Convert to fraction form
   112,290.32/168,346.04 = 64,851.60/x
3. Step 3: Cross multiply
   112,290.32x = 168,346.04 × 64,851.60
4. Step 4: Simplify right side
   112,290.32x = 10,917,510,047.66
5. Step 5: Solve for x
   x = 10,917,510,047.66/112,290.32
6. Step 6: Final answer
   x = 97,225.75