Finding the Fourth Proportional to 42,697,193.67, 64,049,727.69 and 13,943,479.95

Step by Step Solution

1. Step 1: Write the proportion equation
   42,697,193.67 : 64,049,727.69 = 13,943,479.95 : x
2. Step 2: Convert to fraction form
   42,697,193.67/64,049,727.69 = 13,943,479.95/x
3. Step 3: Cross multiply
   42,697,193.67x = 64,049,727.69 × 13,943,479.95
4. Step 4: Simplify right side
   42,697,193.67x = 893,076,093,848,474.75
5. Step 5: Solve for x
   x = 893,076,093,848,474.75/42,697,193.67
6. Step 6: Final answer
   x = 20,916,505.68