Finding the Fourth Proportional to 194,407.59, 291,501.48 and 80,490.98

Step by Step Solution

1. Step 1: Write the proportion equation
   194,407.59 : 291,501.48 = 80,490.98 : x
2. Step 2: Convert to fraction form
   194,407.59/291,501.48 = 80,490.98/x
3. Step 3: Cross multiply
   194,407.59x = 291,501.48 × 80,490.98
4. Step 4: Simplify right side
   194,407.59x = 23,463,240,827.25
5. Step 5: Solve for x
   x = 23,463,240,827.25/194,407.59
6. Step 6: Final answer
   x = 120,690.97