Finding the Fourth Proportional to 146,139,156.36, 201,672,018.72 and 87,401,812.50

Step by Step Solution

1. Step 1: Write the proportion equation
   146,139,156.36 : 201,672,018.72 = 87,401,812.50 : x
2. Step 2: Convert to fraction form
   146,139,156.36/201,672,018.72 = 87,401,812.50/x
3. Step 3: Cross multiply
   146,139,156.36x = 201,672,018.72 × 87,401,812.50
4. Step 4: Simplify right side
   146,139,156.36x = 17,626,499,966,661,930
5. Step 5: Solve for x
   x = 17,626,499,966,661,930/146,139,156.36
6. Step 6: Final answer
   x = 120,614,491.05