Finding the Fourth Proportional to 186,766.31, 257,980.59 and 151,090.87

Step by Step Solution

1. Step 1: Write the proportion equation
   186,766.31 : 257,980.59 = 151,090.87 : x
2. Step 2: Convert to fraction form
   186,766.31/257,980.59 = 151,090.87/x
3. Step 3: Cross multiply
   186,766.31x = 257,980.59 × 151,090.87
4. Step 4: Simplify right side
   186,766.31x = 38,978,510,496.31
5. Step 5: Solve for x
   x = 38,978,510,496.31/186,766.31
6. Step 6: Final answer
   x = 208,702.04