Finding the Fourth Proportional to 108,422.88, 149,610.15 and 60,664.20

Step by Step Solution

1. Step 1: Write the proportion equation
   108,422.88 : 149,610.15 = 60,664.20 : x
2. Step 2: Convert to fraction form
   108,422.88/149,610.15 = 60,664.20/x
3. Step 3: Cross multiply
   108,422.88x = 149,610.15 × 60,664.20
4. Step 4: Simplify right side
   108,422.88x = 9,075,980,061.63
5. Step 5: Solve for x
   x = 9,075,980,061.63/108,422.88
6. Step 6: Final answer
   x = 83,709.08