Finding the Fourth Proportional to 66,139.94, 91,274.73 and 37,854.74

Step by Step Solution

1. Step 1: Write the proportion equation
   66,139.94 : 91,274.73 = 37,854.74 : x
2. Step 2: Convert to fraction form
   66,139.94/91,274.73 = 37,854.74/x
3. Step 3: Cross multiply
   66,139.94x = 91,274.73 × 37,854.74
4. Step 4: Simplify right side
   66,139.94x = 3,455,181,172.72
5. Step 5: Solve for x
   x = 3,455,181,172.72/66,139.94
6. Step 6: Final answer
   x = 52,240.46