Finding the Fourth Proportional to 142,499,005.47, 196,547,230.26 and 130,776,138.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,499,005.47 : 196,547,230.26 = 130,776,138.72 : x
2. Step 2: Convert to fraction form
   142,499,005.47/196,547,230.26 = 130,776,138.72/x
3. Step 3: Cross multiply
   142,499,005.47x = 196,547,230.26 × 130,776,138.72
4. Step 4: Simplify right side
   142,499,005.47x = 25,703,687,849,513,540
5. Step 5: Solve for x
   x = 25,703,687,849,513,540/142,499,005.47
6. Step 6: Final answer
   x = 180,378,015.73