Finding the Fourth Proportional to 13,166,100.52, 18,172,870.85 and 7,660,538.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,166,100.52 : 18,172,870.85 = 7,660,538.83 : x
2. Step 2: Convert to fraction form
   13,166,100.52/18,172,870.85 = 7,660,538.83/x
3. Step 3: Cross multiply
   13,166,100.52x = 18,172,870.85 × 7,660,538.83
4. Step 4: Simplify right side
   13,166,100.52x = 139,213,982,799,000.12
5. Step 5: Solve for x
   x = 139,213,982,799,000.12/13,166,100.52
6. Step 6: Final answer
   x = 10,573,668.54