Finding the Fourth Proportional to 120,587,730.72, 166,406,265.68 and 65,583,630.96

Step by Step Solution

1. Step 1: Write the proportion equation
   120,587,730.72 : 166,406,265.68 = 65,583,630.96 : x
2. Step 2: Convert to fraction form
   120,587,730.72/166,406,265.68 = 65,583,630.96/x
3. Step 3: Cross multiply
   120,587,730.72x = 166,406,265.68 × 65,583,630.96
4. Step 4: Simplify right side
   120,587,730.72x = 10,913,527,117,788,834
5. Step 5: Solve for x
   x = 10,913,527,117,788,834/120,587,730.72
6. Step 6: Final answer
   x = 90,502,798.69