Finding the Fourth Proportional to 286,092.56, 429,139.20 and 99,104.04

Step by Step Solution

1. Step 1: Write the proportion equation
   286,092.56 : 429,139.20 = 99,104.04 : x
2. Step 2: Convert to fraction form
   286,092.56/429,139.20 = 99,104.04/x
3. Step 3: Cross multiply
   286,092.56x = 429,139.20 × 99,104.04
4. Step 4: Simplify right side
   286,092.56x = 42,529,428,442.37
5. Step 5: Solve for x
   x = 42,529,428,442.37/286,092.56
6. Step 6: Final answer
   x = 148,656.18