Finding the Fourth Proportional to 78,109.01, 107,789.94 and 42,298.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,109.01 : 107,789.94 = 42,298.93 : x
2. Step 2: Convert to fraction form
   78,109.01/107,789.94 = 42,298.93/x
3. Step 3: Cross multiply
   78,109.01x = 107,789.94 × 42,298.93
4. Step 4: Simplify right side
   78,109.01x = 4,559,399,564.66
5. Step 5: Solve for x
   x = 4,559,399,564.66/78,109.01
6. Step 6: Final answer
   x = 58,372.26