Finding the Fourth Proportional to 42,408,679.82, 63,554,166.76 and 19,323,196.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,408,679.82 : 63,554,166.76 = 19,323,196.47 : x
2. Step 2: Convert to fraction form
   42,408,679.82/63,554,166.76 = 19,323,196.47/x
3. Step 3: Cross multiply
   42,408,679.82x = 63,554,166.76 × 19,323,196.47
4. Step 4: Simplify right side
   42,408,679.82x = 1,228,069,650,790,623.25
5. Step 5: Solve for x
   x = 1,228,069,650,790,623.25/42,408,679.82
6. Step 6: Final answer
   x = 28,957,978.79