Finding the Fourth Proportional to 23,308,643.20, 32,164,422.96 and 12,994,751.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,308,643.20 : 32,164,422.96 = 12,994,751.20 : x
2. Step 2: Convert to fraction form
   23,308,643.20/32,164,422.96 = 12,994,751.20/x
3. Step 3: Cross multiply
   23,308,643.20x = 32,164,422.96 × 12,994,751.20
4. Step 4: Simplify right side
   23,308,643.20x = 417,968,673,856,767.56
5. Step 5: Solve for x
   x = 417,968,673,856,767.56/23,308,643.20
6. Step 6: Final answer
   x = 17,931,917.80