Finding the Fourth Proportional to 52,378,078.32, 72,287,385.98 and 28,858,979.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,378,078.32 : 72,287,385.98 = 28,858,979.48 : x
2. Step 2: Convert to fraction form
   52,378,078.32/72,287,385.98 = 28,858,979.48/x
3. Step 3: Cross multiply
   52,378,078.32x = 72,287,385.98 × 28,858,979.48
4. Step 4: Simplify right side
   52,378,078.32x = 2,086,140,188,153,927.75
5. Step 5: Solve for x
   x = 2,086,140,188,153,927.75/52,378,078.32
6. Step 6: Final answer
   x = 39,828,498.01