Finding the Fourth Proportional to 12,225,085.95, 18,307,361.69 and 8,978,926.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,225,085.95 : 18,307,361.69 = 8,978,926.01 : x
2. Step 2: Convert to fraction form
   12,225,085.95/18,307,361.69 = 8,978,926.01/x
3. Step 3: Cross multiply
   12,225,085.95x = 18,307,361.69 × 8,978,926.01
4. Step 4: Simplify right side
   12,225,085.95x = 164,380,445,916,387.12
5. Step 5: Solve for x
   x = 164,380,445,916,387.12/12,225,085.95
6. Step 6: Final answer
   x = 13,446,158.71