Finding the Fourth Proportional to 12,898,748.88, 17,799,739.74 and 7,018,407.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,898,748.88 : 17,799,739.74 = 7,018,407.27 : x
2. Step 2: Convert to fraction form
   12,898,748.88/17,799,739.74 = 7,018,407.27/x
3. Step 3: Cross multiply
   12,898,748.88x = 17,799,739.74 × 7,018,407.27
4. Step 4: Simplify right side
   12,898,748.88x = 124,925,822,795,323.89
5. Step 5: Solve for x
   x = 124,925,822,795,323.89/12,898,748.88
6. Step 6: Final answer
   x = 9,685,111.63