Finding the Fourth Proportional to 10,385,969.31, 14,331,886.67 and 5,739,698.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,385,969.31 : 14,331,886.67 = 5,739,698.75 : x
2. Step 2: Convert to fraction form
   10,385,969.31/14,331,886.67 = 5,739,698.75/x
3. Step 3: Cross multiply
   10,385,969.31x = 14,331,886.67 × 5,739,698.75
4. Step 4: Simplify right side
   10,385,969.31x = 82,260,711,947,630.47
5. Step 5: Solve for x
   x = 82,260,711,947,630.47/10,385,969.31
6. Step 6: Final answer
   x = 7,920,369.25