Finding the Fourth Proportional to 83,832.30, 125,784.90 and 42,279.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,832.30 : 125,784.90 = 42,279.30 : x
2. Step 2: Convert to fraction form
   83,832.30/125,784.90 = 42,279.30/x
3. Step 3: Cross multiply
   83,832.30x = 125,784.90 × 42,279.30
4. Step 4: Simplify right side
   83,832.30x = 5,318,097,522.57
5. Step 5: Solve for x
   x = 5,318,097,522.57/83,832.30
6. Step 6: Final answer
   x = 63,437.33