Finding the Fourth Proportional to 17,109,480.63, 25,570,287.48 and 12,508,153.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109,480.63 : 25,570,287.48 = 12,508,153.50 : x
2. Step 2: Convert to fraction form
   17,109,480.63/25,570,287.48 = 12,508,153.50/x
3. Step 3: Cross multiply
   17,109,480.63x = 25,570,287.48 × 12,508,153.50
4. Step 4: Simplify right side
   17,109,480.63x = 319,837,080,838,968.19
5. Step 5: Solve for x
   x = 319,837,080,838,968.19/17,109,480.63
6. Step 6: Final answer
   x = 18,693,558.72