Finding the Fourth Proportional to 155,051,003.30, 213,960,743.61 and 85,432,488.26

Step by Step Solution

1. Step 1: Write the proportion equation
   155,051,003.30 : 213,960,743.61 = 85,432,488.26 : x
2. Step 2: Convert to fraction form
   155,051,003.30/213,960,743.61 = 85,432,488.26/x
3. Step 3: Cross multiply
   155,051,003.30x = 213,960,743.61 × 85,432,488.26
4. Step 4: Simplify right side
   155,051,003.30x = 18,279,198,716,562,196
5. Step 5: Solve for x
   x = 18,279,198,716,562,196/155,051,003.30
6. Step 6: Final answer
   x = 117,891,521.68