Finding the Fourth Proportional to 66,066.88, 91,172.32 and 37,773.12

Step by Step Solution

1. Step 1: Write the proportion equation
   66,066.88 : 91,172.32 = 37,773.12 : x
2. Step 2: Convert to fraction form
   66,066.88/91,172.32 = 37,773.12/x
3. Step 3: Cross multiply
   66,066.88x = 91,172.32 × 37,773.12
4. Step 4: Simplify right side
   66,066.88x = 3,443,862,984.04
5. Step 5: Solve for x
   x = 3,443,862,984.04/66,066.88
6. Step 6: Final answer
   x = 52,126.92