Finding the Fourth Proportional to 10,004,978.24, 15,007,473.12 and 7,026,459.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,004,978.24 : 15,007,473.12 = 7,026,459.20 : x
2. Step 2: Convert to fraction form
   10,004,978.24/15,007,473.12 = 7,026,459.20/x
3. Step 3: Cross multiply
   10,004,978.24x = 15,007,473.12 × 7,026,459.20
4. Step 4: Simplify right side
   10,004,978.24x = 105,449,397,572,776.70
5. Step 5: Solve for x
   x = 105,449,397,572,776.70/10,004,978.24
6. Step 6: Final answer
   x = 10,539,692.85