Finding the Fourth Proportional to 6,434.58, 8,881.11 and 3,917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,434.58 : 8,881.11 = 3,917.50 : x
2. Step 2: Convert to fraction form
   6,434.58/8,881.11 = 3,917.50/x
3. Step 3: Cross multiply
   6,434.58x = 8,881.11 × 3,917.50
4. Step 4: Simplify right side
   6,434.58x = 34,791,748.43
5. Step 5: Solve for x
   x = 34,791,748.43/6,434.58
6. Step 6: Final answer
   x = 5,407.00