Finding the Fourth Proportional to 39,196,650.89, 54,088,570.42 and 21,556,795.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,196,650.89 : 54,088,570.42 = 21,556,795.50 : x
2. Step 2: Convert to fraction form
   39,196,650.89/54,088,570.42 = 21,556,795.50/x
3. Step 3: Cross multiply
   39,196,650.89x = 54,088,570.42 × 21,556,795.50
4. Step 4: Simplify right side
   39,196,650.89x = 1,165,976,251,377,397
5. Step 5: Solve for x
   x = 1,165,976,251,377,397/39,196,650.89
6. Step 6: Final answer
   x = 29,746,833.59