Finding the Fourth Proportional to 189,179,196.72, 261,067,176 and 102,259,068.72

Step by Step Solution

1. Step 1: Write the proportion equation
   189,179,196.72 : 261,067,176 = 102,259,068.72 : x
2. Step 2: Convert to fraction form
   189,179,196.72/261,067,176 = 102,259,068.72/x
3. Step 3: Cross multiply
   189,179,196.72x = 261,067,176 × 102,259,068.72
4. Step 4: Simplify right side
   189,179,196.72x = 26,696,486,291,120,336
5. Step 5: Solve for x
   x = 26,696,486,291,120,336/189,179,196.72
6. Step 6: Final answer
   x = 141,117,452.42