Finding the Fourth Proportional to 42,378,518.78, 63,535,445.29 and 19,333,336.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,378,518.78 : 63,535,445.29 = 19,333,336.83 : x
2. Step 2: Convert to fraction form
   42,378,518.78/63,535,445.29 = 19,333,336.83/x
3. Step 3: Cross multiply
   42,378,518.78x = 63,535,445.29 × 19,333,336.83
4. Step 4: Simplify right side
   42,378,518.78x = 1,228,352,164,435,607
5. Step 5: Solve for x
   x = 1,228,352,164,435,607/42,378,518.78
6. Step 6: Final answer
   x = 28,985,254.79