Finding the Fourth Proportional to 64,134.60, 88,479.86 and 42,634.74

Step by Step Solution

1. Step 1: Write the proportion equation
   64,134.60 : 88,479.86 = 42,634.74 : x
2. Step 2: Convert to fraction form
   64,134.60/88,479.86 = 42,634.74/x
3. Step 3: Cross multiply
   64,134.60x = 88,479.86 × 42,634.74
4. Step 4: Simplify right side
   64,134.60x = 3,772,315,826.34
5. Step 5: Solve for x
   x = 3,772,315,826.34/64,134.60
6. Step 6: Final answer
   x = 58,818.73