Finding the Fourth Proportional to 17,978,394.56, 26,986,782.69 and 7,748,302.86

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978,394.56 : 26,986,782.69 = 7,748,302.86 : x
2. Step 2: Convert to fraction form
   17,978,394.56/26,986,782.69 = 7,748,302.86/x
3. Step 3: Cross multiply
   17,978,394.56x = 26,986,782.69 × 7,748,302.86
4. Step 4: Simplify right side
   17,978,394.56x = 209,101,765,499,125.50
5. Step 5: Solve for x
   x = 209,101,765,499,125.50/17,978,394.56
6. Step 6: Final answer
   x = 11,630,725.14