Finding the Fourth Proportional to 9,523,776.29, 13,142,907.72 and 5,172,947.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,523,776.29 : 13,142,907.72 = 5,172,947.55 : x
2. Step 2: Convert to fraction form
   9,523,776.29/13,142,907.72 = 5,172,947.55/x
3. Step 3: Cross multiply
   9,523,776.29x = 13,142,907.72 × 5,172,947.55
4. Step 4: Simplify right side
   9,523,776.29x = 67,987,572,290,050.09
5. Step 5: Solve for x
   x = 67,987,572,290,050.09/9,523,776.29
6. Step 6: Final answer
   x = 7,138,720.01