Finding the Fourth Proportional to 25,581,810.72, 35,302,826.60 and 13,979,447.68

Step by Step Solution

1. Step 1: Write the proportion equation
   25,581,810.72 : 35,302,826.60 = 13,979,447.68 : x
2. Step 2: Convert to fraction form
   25,581,810.72/35,302,826.60 = 13,979,447.68/x
3. Step 3: Cross multiply
   25,581,810.72x = 35,302,826.60 × 13,979,447.68
4. Step 4: Simplify right side
   25,581,810.72x = 493,514,017,410,812.31
5. Step 5: Solve for x
   x = 493,514,017,410,812.31/25,581,810.72
6. Step 6: Final answer
   x = 19,291,598.35