Finding the Fourth Proportional to 39,930,142.07, 55,103,595.63 and 21,595,427.57

Step by Step Solution

1. Step 1: Write the proportion equation
   39,930,142.07 : 55,103,595.63 = 21,595,427.57 : x
2. Step 2: Convert to fraction form
   39,930,142.07/55,103,595.63 = 21,595,427.57/x
3. Step 3: Cross multiply
   39,930,142.07x = 55,103,595.63 × 21,595,427.57
4. Step 4: Simplify right side
   39,930,142.07x = 1,189,985,708,274,233.50
5. Step 5: Solve for x
   x = 1,189,985,708,274,233.50/39,930,142.07
6. Step 6: Final answer
   x = 29,801,689.82