Finding the Fourth Proportional to 42,781,043.50, 64,171,465.45 and 28,101,797.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,781,043.50 : 64,171,465.45 = 28,101,797.42 : x
2. Step 2: Convert to fraction form
   42,781,043.50/64,171,465.45 = 28,101,797.42/x
3. Step 3: Cross multiply
   42,781,043.50x = 64,171,465.45 × 28,101,797.42
4. Step 4: Simplify right side
   42,781,043.50x = 1,803,333,522,335,770.75
5. Step 5: Solve for x
   x = 1,803,333,522,335,770.75/42,781,043.50
6. Step 6: Final answer
   x = 42,152,630.58