Finding the Fourth Proportional to 15,059,969.50, 22,671,896.72 and 13,720,738.18

Step by Step Solution

1. Step 1: Write the proportion equation
   15,059,969.50 : 22,671,896.72 = 13,720,738.18 : x
2. Step 2: Convert to fraction form
   15,059,969.50/22,671,896.72 = 13,720,738.18/x
3. Step 3: Cross multiply
   15,059,969.50x = 22,671,896.72 × 13,720,738.18
4. Step 4: Simplify right side
   15,059,969.50x = 311,075,158,939,120.75
5. Step 5: Solve for x
   x = 311,075,158,939,120.75/15,059,969.50
6. Step 6: Final answer
   x = 20,655,762.88