Finding the Fourth Proportional to 78,088.04, 107,761.54 and 42,278.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,088.04 : 107,761.54 = 42,278.06 : x
2. Step 2: Convert to fraction form
   78,088.04/107,761.54 = 42,278.06/x
3. Step 3: Cross multiply
   78,088.04x = 107,761.54 × 42,278.06
4. Step 4: Simplify right side
   78,088.04x = 4,555,948,853.81
5. Step 5: Solve for x
   x = 4,555,948,853.81/78,088.04
6. Step 6: Final answer
   x = 58,343.75