Finding the Fourth Proportional to 171,192,002.72, 236,245,416.72 and 92,875,553.72

Step by Step Solution

1. Step 1: Write the proportion equation
   171,192,002.72 : 236,245,416.72 = 92,875,553.72 : x
2. Step 2: Convert to fraction form
   171,192,002.72/236,245,416.72 = 92,875,553.72/x
3. Step 3: Cross multiply
   171,192,002.72x = 236,245,416.72 × 92,875,553.72
4. Step 4: Simplify right side
   171,192,002.72x = 21,941,423,891,682,144
5. Step 5: Solve for x
   x = 21,941,423,891,682,144/171,192,002.72
6. Step 6: Final answer
   x = 128,168,509.88