Finding the Fourth Proportional to 118,298.34, 163,254.18 and 64,585.62

Step by Step Solution

1. Step 1: Write the proportion equation
   118,298.34 : 163,254.18 = 64,585.62 : x
2. Step 2: Convert to fraction form
   118,298.34/163,254.18 = 64,585.62/x
3. Step 3: Cross multiply
   118,298.34x = 163,254.18 × 64,585.62
4. Step 4: Simplify right side
   118,298.34x = 10,543,872,432.89
5. Step 5: Solve for x
   x = 10,543,872,432.89/118,298.34
6. Step 6: Final answer
   x = 89,129.50