Finding the Fourth Proportional to 118,886.47, 164,070.98 and 65,171.63

Step by Step Solution

1. Step 1: Write the proportion equation
   118,886.47 : 164,070.98 = 65,171.63 : x
2. Step 2: Convert to fraction form
   118,886.47/164,070.98 = 65,171.63/x
3. Step 3: Cross multiply
   118,886.47x = 164,070.98 × 65,171.63
4. Step 4: Simplify right side
   118,886.47x = 10,692,773,202.30
5. Step 5: Solve for x
   x = 10,692,773,202.30/118,886.47
6. Step 6: Final answer
   x = 89,941.04