Finding the Fourth Proportional to 78,101.19, 107,779.69 and 42,291.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,101.19 : 107,779.69 = 42,291.34 : x
2. Step 2: Convert to fraction form
   78,101.19/107,779.69 = 42,291.34/x
3. Step 3: Cross multiply
   78,101.19x = 107,779.69 × 42,291.34
4. Step 4: Simplify right side
   78,101.19x = 4,558,147,482.49
5. Step 5: Solve for x
   x = 4,558,147,482.49/78,101.19
6. Step 6: Final answer
   x = 58,362.08