Finding the Fourth Proportional to 118,339.52, 163,307.71 and 64,624.53

Step by Step Solution

1. Step 1: Write the proportion equation
   118,339.52 : 163,307.71 = 64,624.53 : x
2. Step 2: Convert to fraction form
   118,339.52/163,307.71 = 64,624.53/x
3. Step 3: Cross multiply
   118,339.52x = 163,307.71 × 64,624.53
4. Step 4: Simplify right side
   118,339.52x = 10,553,684,697.31
5. Step 5: Solve for x
   x = 10,553,684,697.31/118,339.52
6. Step 6: Final answer
   x = 89,181.41