Finding the Fourth Proportional to 328,773.15, 493,164.59 and 92,100.87

Step by Step Solution

1. Step 1: Write the proportion equation
   328,773.15 : 493,164.59 = 92,100.87 : x
2. Step 2: Convert to fraction form
   328,773.15/493,164.59 = 92,100.87/x
3. Step 3: Cross multiply
   328,773.15x = 493,164.59 × 92,100.87
4. Step 4: Simplify right side
   328,773.15x = 45,420,887,331.69
5. Step 5: Solve for x
   x = 45,420,887,331.69/328,773.15
6. Step 6: Final answer
   x = 138,152.67