Finding the Fourth Proportional to 118,288.95, 163,196.82 and 75,870.87

Step by Step Solution

1. Step 1: Write the proportion equation
   118,288.95 : 163,196.82 = 75,870.87 : x
2. Step 2: Convert to fraction form
   118,288.95/163,196.82 = 75,870.87/x
3. Step 3: Cross multiply
   118,288.95x = 163,196.82 × 75,870.87
4. Step 4: Simplify right side
   118,288.95x = 12,381,884,714.63
5. Step 5: Solve for x
   x = 12,381,884,714.63/118,288.95
6. Step 6: Final answer
   x = 104,674.91