Finding the Fourth Proportional to 47,890.88, 66,100.16 and 31,094.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,890.88 : 66,100.16 = 31,094.72 : x
2. Step 2: Convert to fraction form
   47,890.88/66,100.16 = 31,094.72/x
3. Step 3: Cross multiply
   47,890.88x = 66,100.16 × 31,094.72
4. Step 4: Simplify right side
   47,890.88x = 2,055,365,967.16
5. Step 5: Solve for x
   x = 2,055,365,967.16/47,890.88
6. Step 6: Final answer
   x = 42,917.69