Finding the Fourth Proportional to 5,153,896.38, 7,113,004.37 and 2,978,457.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,153,896.38 : 7,113,004.37 = 2,978,457.31 : x
2. Step 2: Convert to fraction form
   5,153,896.38/7,113,004.37 = 2,978,457.31/x
3. Step 3: Cross multiply
   5,153,896.38x = 7,113,004.37 × 2,978,457.31
4. Step 4: Simplify right side
   5,153,896.38x = 21,185,779,861,888.45
5. Step 5: Solve for x
   x = 21,185,779,861,888.45/5,153,896.38
6. Step 6: Final answer
   x = 4,110,633.64