Finding the Fourth Proportional to 78,191.25, 107,903.82 and 42,381.24

Step by Step Solution

1. Step 1: Write the proportion equation
   78,191.25 : 107,903.82 = 42,381.24 : x
2. Step 2: Convert to fraction form
   78,191.25/107,903.82 = 42,381.24/x
3. Step 3: Cross multiply
   78,191.25x = 107,903.82 × 42,381.24
4. Step 4: Simplify right side
   78,191.25x = 4,573,097,692.34
5. Step 5: Solve for x
   x = 4,573,097,692.34/78,191.25
6. Step 6: Final answer
   x = 58,486.05