Finding the Fourth Proportional to 137,046.02, 189,054.24 and 91,725.90

Step by Step Solution

1. Step 1: Write the proportion equation
   137,046.02 : 189,054.24 = 91,725.90 : x
2. Step 2: Convert to fraction form
   137,046.02/189,054.24 = 91,725.90/x
3. Step 3: Cross multiply
   137,046.02x = 189,054.24 × 91,725.90
4. Step 4: Simplify right side
   137,046.02x = 17,341,170,312.82
5. Step 5: Solve for x
   x = 17,341,170,312.82/137,046.02
6. Step 6: Final answer
   x = 126,535.39