Finding the Fourth Proportional to 307,196.82, 460,597.59 and 129,656.16

Step by Step Solution

1. Step 1: Write the proportion equation
   307,196.82 : 460,597.59 = 129,656.16 : x
2. Step 2: Convert to fraction form
   307,196.82/460,597.59 = 129,656.16/x
3. Step 3: Cross multiply
   307,196.82x = 460,597.59 × 129,656.16
4. Step 4: Simplify right side
   307,196.82x = 59,719,314,824.65
5. Step 5: Solve for x
   x = 59,719,314,824.65/307,196.82
6. Step 6: Final answer
   x = 194,400.82