Finding the Fourth Proportional to 16,404,978.85, 24,601,769.78 and 9,129,541.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,404,978.85 : 24,601,769.78 = 9,129,541.24 : x
2. Step 2: Convert to fraction form
   16,404,978.85/24,601,769.78 = 9,129,541.24/x
3. Step 3: Cross multiply
   16,404,978.85x = 24,601,769.78 × 9,129,541.24
4. Step 4: Simplify right side
   16,404,978.85x = 224,602,871,655,887.56
5. Step 5: Solve for x
   x = 224,602,871,655,887.56/16,404,978.85
6. Step 6: Final answer
   x = 13,691,140.58